69402090 has 16 divisors (see below), whose sum is σ = 166565088. Its totient is φ = 18507216.

The previous prime is 69402089. The next prime is 69402103. The reversal of 69402090 is 9020496.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2313403 = 69402090 / (6 + 9 + 4 + 0 + 2 + 0 + 9 + 0).

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, 1156672 + ... + 1156731.

It is an arithmetic number, because the mean of its divisors is an integer number (10410318).

Almost surely, 2^69402090 is an apocalyptic number.

69402090 is an abundant number, since it is smaller than the sum of its proper divisors (97162998).

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

69402090 is a wasteful number, since it uses less digits than its factorization.

69402090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313413.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 69402090 is about 8330.7916790663. The cubic root of 69402090 is about 410.9517646935.

The spelling of 69402090 in words is "sixty-nine million, four hundred two thousand, ninety".