1010023992 has 160 divisors (see below), whose sum is σ = 3015310320. Its totient is φ = 314772480.

The previous prime is 1010023991. The next prime is 1010023999. The reversal of 1010023992 is 2993200101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010023991) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3051267 + ... + 3051597.

Almost surely, 2^1010023992 is an apocalyptic number.

1010023992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010023992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507655160).

1010023992 is an abundant number, since it is smaller than the sum of its proper divisors (2005286328).

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

1010023992 is a wasteful number, since it uses less digits than its factorization.

1010023992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1010023992 is about 31780.8746261018. The cubic root of 1010023992 is about 1003.3302279373.

The spelling of 1010023992 in words is "one billion, ten million, twenty-three thousand, nine hundred ninety-two".