1023632864 has 48 divisors (see below), whose sum is σ = 2050907040. Its totient is φ = 502824960.

The previous prime is 1023632851. The next prime is 1023632867. The reversal of 1023632864 is 4682363201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023632867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725792 + ... + 727200.

It is an arithmetic number, because the mean of its divisors is an integer number (42727230).

Almost surely, 2^1023632864 is an apocalyptic number.

It is an amenable number.

1023632864 is an abundant number, since it is smaller than the sum of its proper divisors (1027274176).

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

1023632864 is a wasteful number, since it uses less digits than its factorization.

1023632864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1023632864 is about 31994.2629857292. The cubic root of 1023632864 is about 1007.8163665652.

The spelling of 1023632864 in words is "one billion, twenty-three million, six hundred thirty-two thousand, eight hundred sixty-four".