45039842 has 32 divisors (see below), whose sum is σ = 76809600. Its totient is φ = 19692288.

The previous prime is 45039811. The next prime is 45039847. The reversal of 45039842 is 24893054.

It is not an unprimeable number, because it can be changed into a prime (45039847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24458 + ... + 26234.

It is an arithmetic number, because the mean of its divisors is an integer number (2400300).

Almost surely, 2^45039842 is an apocalyptic number.

45039842 is a deficient number, since it is larger than the sum of its proper divisors (31769758).

45039842 is a wasteful number, since it uses less digits than its factorization.

45039842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 45039842 is about 6711.1729228206. The cubic root of 45039842 is about 355.7942726269.

The spelling of 45039842 in words is "forty-five million, thirty-nine thousand, eight hundred forty-two".