42779590 has 16 divisors (see below), whose sum is σ = 88003872. Its totient is φ = 14667264.

The previous prime is 42779579. The next prime is 42779591. The reversal of 42779590 is 9597724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42779591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305499 + ... + 305638.

It is an arithmetic number, because the mean of its divisors is an integer number (5500242).

Almost surely, 2^42779590 is an apocalyptic number.

42779590 is an abundant number, since it is smaller than the sum of its proper divisors (45224282).

42779590 is a wasteful number, since it uses less digits than its factorization.

42779590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611151.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 42779590 is about 6540.6108277438. The cubic root of 42779590 is about 349.7401881367.

The spelling of 42779590 in words is "forty-two million, seven hundred seventy-nine thousand, five hundred ninety".