71926490 has 16 divisors (see below), whose sum is σ = 137083752. Its totient is φ = 27078144.

The previous prime is 71926471. The next prime is 71926493. The reversal of 71926490 is 9462917.

It can be written as a sum of positive squares in 4 ways, for example, as 62932489 + 8994001 = 7933^2 + 2999^2 .

It is not an unprimeable number, because it can be changed into a prime (71926493) by changing a digit.

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, 211379 + ... + 211718.

Almost surely, 2^71926490 is an apocalyptic number.

71926490 is a deficient number, since it is larger than the sum of its proper divisors (65157262).

71926490 is a wasteful number, since it uses less digits than its factorization.

71926490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423121.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 71926490 is about 8480.9486497679. The cubic root of 71926490 is about 415.8751358796.

The spelling of 71926490 in words is "seventy-one million, nine hundred twenty-six thousand, four hundred ninety".