42992270 has 16 divisors (see below), whose sum is σ = 77530608. Its totient is φ = 17164800.

The previous prime is 42992249. The next prime is 42992291. The reversal of 42992270 is 7229924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42992249) and next prime (42992291).

It is a self number, because there is not a number n which added to its sum of digits gives 42992270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045 + ... + 9495.

It is an arithmetic number, because the mean of its divisors is an integer number (4845663).

Almost surely, 2^42992270 is an apocalyptic number.

42992270 is a deficient number, since it is larger than the sum of its proper divisors (34538338).

42992270 is a wasteful number, since it uses less digits than its factorization.

42992270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 42992270 is about 6556.8490908362. The cubic root of 42992270 is about 350.3188115503.

The spelling of 42992270 in words is "forty-two million, nine hundred ninety-two thousand, two hundred seventy".