45057242 has 16 divisors (see below), whose sum is σ = 74030760. Its totient is φ = 20471808.

The previous prime is 45057241. The next prime is 45057263. The reversal of 45057242 is 24275054.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40972801 + 4084441 = 6401^2 + 2021^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (45057241) 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, 21863 + ... + 23834.

Almost surely, 2^45057242 is an apocalyptic number.

45057242 is a deficient number, since it is larger than the sum of its proper divisors (28973518).

45057242 is a wasteful number, since it uses less digits than its factorization.

45057242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45745.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 45057242 is about 6712.4691433183. The cubic root of 45057242 is about 355.8400840909.

The spelling of 45057242 in words is "forty-five million, fifty-seven thousand, two hundred forty-two".