42657402 has 8 divisors (see below), whose sum is σ = 85314816. Its totient is φ = 14219132.

The previous prime is 42657401. The next prime is 42657409. The reversal of 42657402 is 20475624.

It is a sphenic number, since it is the product of 3 distinct primes.

42657402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42657402.

It is not an unprimeable number, because it can be changed into a prime (42657401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3554778 + ... + 3554789.

It is an arithmetic number, because the mean of its divisors is an integer number (10664352).

Almost surely, 2^42657402 is an apocalyptic number.

42657402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42657402 is a wasteful number, since it uses less digits than its factorization.

42657402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109572.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 42657402 is about 6531.2634306082. The cubic root of 42657402 is about 349.4068920892.

The spelling of 42657402 in words is "forty-two million, six hundred fifty-seven thousand, four hundred two".