42457810 has 16 divisors (see below), whose sum is σ = 76609152. Its totient is φ = 16942000.

The previous prime is 42457801. The next prime is 42457819. The reversal of 42457810 is 1875424.

It is an interprime number because it is at equal distance from previous prime (42457801) and next prime (42457819).

It is a super-2 number, since 2×42457810² = 3605331259992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42457819) 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, 616 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (4788072).

Almost surely, 2^42457810 is an apocalyptic number.

42457810 is a deficient number, since it is larger than the sum of its proper divisors (34151342).

42457810 is a wasteful number, since it uses less digits than its factorization.

42457810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10289.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42457810 is about 6515.9657764602. The cubic root of 42457810 is about 348.8610870708.

The spelling of 42457810 in words is "forty-two million, four hundred fifty-seven thousand, eight hundred ten".