45442400 has 72 divisors (see below), whose sum is σ = 113602104. Its totient is φ = 17740800.

The previous prime is 45442399. The next prime is 45442469. The reversal of 45442400 is 424454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33740 + ... + 35060.

It is an arithmetic number, because the mean of its divisors is an integer number (1577807).

Almost surely, 2^45442400 is an apocalyptic number.

45442400 is a gapful number since it is divisible by the number (40) 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 45442400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56801052).

45442400 is an abundant number, since it is smaller than the sum of its proper divisors (68159704).

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

45442400 is a wasteful number, since it uses less digits than its factorization.

45442400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 45442400 is about 6741.0978334393. The cubic root of 45442400 is about 356.8511385475.

Adding to 45442400 its reverse (424454), we get a palindrome (45866854).

The spelling of 45442400 in words is "forty-five million, four hundred forty-two thousand, four hundred".