926139864 has 128 divisors (see below), whose sum is σ = 2549131200. Its totient is φ = 278691840.

The previous prime is 926139793. The next prime is 926139871. The reversal of 926139864 is 468931629.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3842784 + ... + 3843024.

Almost surely, 2^926139864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 926139864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274565600).

926139864 is an abundant number, since it is smaller than the sum of its proper divisors (1622991336).

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

926139864 is a wasteful number, since it uses less digits than its factorization.

926139864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 926139864 is about 30432.5461307463. The cubic root of 926139864 is about 974.7476406704.

The spelling of 926139864 in words is "nine hundred twenty-six million, one hundred thirty-nine thousand, eight hundred sixty-four".