1023465880 has 32 divisors (see below), whose sum is σ = 2365039440. Its totient is φ = 398321280.

The previous prime is 1023465851. The next prime is 1023465889. The reversal of 1023465880 is 885643201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023465889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344286 + ... + 347245.

Almost surely, 2^1023465880 is an apocalyptic number.

1023465880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023465880 is an abundant number, since it is smaller than the sum of its proper divisors (1341573560).

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

1023465880 is a wasteful number, since it uses less digits than its factorization.

1023465880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691579 (or 691575 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1023465880 is about 31991.6532864433. The cubic root of 1023465880 is about 1007.7615622938.

The spelling of 1023465880 in words is "one billion, twenty-three million, four hundred sixty-five thousand, eight hundred eighty".