42897628 has 12 divisors (see below), whose sum is σ = 75282480. Its totient is φ = 21388352.

The previous prime is 42897623. The next prime is 42897671. The reversal of 42897628 is 82679824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42897623) 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, 13501 + ... + 16372.

It is an arithmetic number, because the mean of its divisors is an integer number (6273540).

Almost surely, 2^42897628 is an apocalyptic number.

It is an amenable number.

42897628 is a deficient number, since it is larger than the sum of its proper divisors (32384852).

42897628 is a wasteful number, since it uses less digits than its factorization.

42897628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30236 (or 30234 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 42897628 is about 6549.6280810440. The cubic root of 42897628 is about 350.0615619603.

The spelling of 42897628 in words is "forty-two million, eight hundred ninety-seven thousand, six hundred twenty-eight".