42457203 has 12 divisors (see below), whose sum is σ = 63598808. Its totient is φ = 28304640.

The previous prime is 42457201. The next prime is 42457213. The reversal of 42457203 is 30275424.

42457203 is a `hidden beast` number, since 4 + 2 + 457 + 203 = 666.

42457203 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 42457203 - 2¹ = 42457201 is a prime.

It is a super-2 number, since 2×42457203² = 3605228173166418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42457201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87118 + ... + 87603.

Almost surely, 2^42457203 is an apocalyptic number.

42457203 is a deficient number, since it is larger than the sum of its proper divisors (21141605).

42457203 is an equidigital number, since it uses as much as digits as its factorization.

42457203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174736 (or 174724 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42457203 is about 6515.9191983940. The cubic root of 42457203 is about 348.8594245601.

The spelling of 42457203 in words is "forty-two million, four hundred fifty-seven thousand, two hundred three".