42769690 has 32 divisors (see below), whose sum is σ = 79470720. Its totient is φ = 16564800.

The previous prime is 42769667. The next prime is 42769691. The reversal of 42769690 is 9696724.

It is a super-2 number, since 2×42769690² = 3658492765392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42769691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41380 + ... + 42400.

It is an arithmetic number, because the mean of its divisors is an integer number (2483460).

Almost surely, 2^42769690 is an apocalyptic number.

42769690 is a deficient number, since it is larger than the sum of its proper divisors (36701030).

42769690 is a wasteful number, since it uses less digits than its factorization.

42769690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 42769690 is about 6539.8539739049. The cubic root of 42769690 is about 349.7132072408.

The spelling of 42769690 in words is "forty-two million, seven hundred sixty-nine thousand, six hundred ninety".