42357045 has 32 divisors (see below), whose sum is σ = 70172928. Its totient is φ = 21800448.

The previous prime is 42357041. The next prime is 42357079. The reversal of 42357045 is 54075324.

It is not a de Polignac number, because 42357045 - 2² = 42357041 is a prime.

It is a super-2 number, since 2×42357045² = 3588238522264050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42357041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92457 + ... + 92913.

It is an arithmetic number, because the mean of its divisors is an integer number (2192904).

Almost surely, 2^42357045 is an apocalyptic number.

It is an amenable number.

42357045 is a deficient number, since it is larger than the sum of its proper divisors (27815883).

42357045 is a wasteful number, since it uses less digits than its factorization.

42357045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42357045 is about 6508.2290217847. The cubic root of 42357045 is about 348.5848847760.

The spelling of 42357045 in words is "forty-two million, three hundred fifty-seven thousand, forty-five".