42453508 has 24 divisors (see below), whose sum is σ = 77172480. Its totient is φ = 20412960.

The previous prime is 42453503. The next prime is 42453517. The reversal of 42453508 is 80535424.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 42453508.

It is not an unprimeable number, because it can be changed into a prime (42453503) 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, 20463 + ... + 22441.

It is an arithmetic number, because the mean of its divisors is an integer number (3215520).

Almost surely, 2^42453508 is an apocalyptic number.

It is an amenable number.

42453508 is a deficient number, since it is larger than the sum of its proper divisors (34718972).

42453508 is a wasteful number, since it uses less digits than its factorization.

42453508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 42453508 is about 6515.6356558666. The cubic root of 42453508 is about 348.8493039926.

The spelling of 42453508 in words is "forty-two million, four hundred fifty-three thousand, five hundred eight".