42764157 has 12 divisors (see below), whose sum is σ = 62693280. Its totient is φ = 28083528.

The previous prime is 42764123. The next prime is 42764167. The reversal of 42764157 is 75146724.

42764157 is a `hidden beast` number, since 4 + 2 + 7 + 641 + 5 + 7 = 666.

It is not a de Polignac number, because 42764157 - 2¹⁴ = 42747773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42764167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34857 + ... + 36062.

It is an arithmetic number, because the mean of its divisors is an integer number (5224440).

Almost surely, 2^42764157 is an apocalyptic number.

It is an amenable number.

42764157 is a deficient number, since it is larger than the sum of its proper divisors (19929123).

42764157 is a wasteful number, since it uses less digits than its factorization.

42764157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70992 (or 70989 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 42764157 is about 6539.4309385450. The cubic root of 42764157 is about 349.6981261041.

The spelling of 42764157 in words is "forty-two million, seven hundred sixty-four thousand, one hundred fifty-seven".