45402544 has 40 divisors (see below), whose sum is σ = 97560720. Its totient is φ = 20294400.

The previous prime is 45402541. The next prime is 45402547. The reversal of 45402544 is 44520454.

It is an interprime number because it is at equal distance from previous prime (45402541) and next prime (45402547).

It is a super-2 number, since 2×45402544² = 4122782003343872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (45402541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8622 + ... + 12850.

It is an arithmetic number, because the mean of its divisors is an integer number (2439018).

Almost surely, 2^45402544 is an apocalyptic number.

45402544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45402544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48780360).

45402544 is an abundant number, since it is smaller than the sum of its proper divisors (52158176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45402544 is a wasteful number, since it uses less digits than its factorization.

45402544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 45402544 is about 6738.1409899170. The cubic root of 45402544 is about 356.7467806565.

Adding to 45402544 its reverse (44520454), we get a palindrome (89922998).

The spelling of 45402544 in words is "forty-five million, four hundred two thousand, five hundred forty-four".