45039888 has 100 divisors (see below), whose sum is σ = 136116288. Its totient is φ = 14351040.

The previous prime is 45039887. The next prime is 45039889. The reversal of 45039888 is 88893054.

It is an interprime number because it is at equal distance from previous prime (45039887) and next prime (45039889).

It is a super-2 number, since 2×45039888² = 4057183022105088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45039881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29053 + ... + 30563.

Almost surely, 2^45039888 is an apocalyptic number.

45039888 is a gapful number since it is divisible by the number (48) 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 45039888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68058144).

45039888 is an abundant number, since it is smaller than the sum of its proper divisors (91076400).

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

45039888 is a wasteful number, since it uses less digits than its factorization.

45039888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 45039888 is about 6711.1763499404. The cubic root of 45039888 is about 355.7943937533.

The spelling of 45039888 in words is "forty-five million, thirty-nine thousand, eight hundred eighty-eight".