42862780 has 24 divisors (see below), whose sum is σ = 95307408. Its totient is φ = 16136448.

The previous prime is 42862769. The next prime is 42862811. The reversal of 42862780 is 8726824.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62694 + ... + 63373.

It is an arithmetic number, because the mean of its divisors is an integer number (3971142).

Almost surely, 2^42862780 is an apocalyptic number.

It is an amenable number.

42862780 is an abundant number, since it is smaller than the sum of its proper divisors (52444628).

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

42862780 is a wasteful number, since it uses less digits than its factorization.

42862780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126093 (or 126091 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 42862780 is about 6546.9672368204. The cubic root of 42862780 is about 349.9667451397.

The spelling of 42862780 in words is "forty-two million, eight hundred sixty-two thousand, seven hundred eighty".