920869632 has 108 divisors (see below), whose sum is σ = 2740954944. Its totient is φ = 297031680.

The previous prime is 920869627. The next prime is 920869661. The reversal of 920869632 is 236968029.

920869632 is a `hidden beast` number, since 9 + 2 + 0 + 8 + 6 + 9 + 632 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64978 + ... + 77870.

Almost surely, 2^920869632 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 920869632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370477472).

920869632 is an abundant number, since it is smaller than the sum of its proper divisors (1820085312).

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

920869632 is a wasteful number, since it uses less digits than its factorization.

920869632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946 (or 12929 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 920869632 is about 30345.8338491464. The cubic root of 920869632 is about 972.8951769470.

The spelling of 920869632 in words is "nine hundred twenty million, eight hundred sixty-nine thousand, six hundred thirty-two".