42616780 has 24 divisors (see below), whose sum is σ = 91401408. Its totient is φ = 16683648.

The previous prime is 42616771. The next prime is 42616801. The reversal of 42616780 is 8761624.

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, 21729 + ... + 23608.

It is an arithmetic number, because the mean of its divisors is an integer number (3808392).

Almost surely, 2^42616780 is an apocalyptic number.

It is an amenable number.

42616780 is an abundant number, since it is smaller than the sum of its proper divisors (48784628).

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

42616780 is a wasteful number, since it uses less digits than its factorization.

42616780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45393 (or 45391 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42616780 is about 6528.1528781118. The cubic root of 42616780 is about 349.2959452278.

The spelling of 42616780 in words is "forty-two million, six hundred sixteen thousand, seven hundred eighty".