42742190 has 24 divisors (see below), whose sum is σ = 77890680. Its totient is φ = 16887200.

The previous prime is 42742169. The next prime is 42742207. The reversal of 42742190 is 9124724.

It is a super-2 number, since 2×42742190² = 3653789611992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101801 + ... + 102219.

It is an arithmetic number, because the mean of its divisors is an integer number (3245445).

Almost surely, 2^42742190 is an apocalyptic number.

42742190 is a deficient number, since it is larger than the sum of its proper divisors (35148490).

42742190 is a wasteful number, since it uses less digits than its factorization.

42742190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 42742190 is about 6537.7511424036. The cubic root of 42742190 is about 349.6382384554.

The spelling of 42742190 in words is "forty-two million, seven hundred forty-two thousand, one hundred ninety".