1020499632 has 60 divisors (see below), whose sum is σ = 2888107560. Its totient is φ = 336340224.

The previous prime is 1020499619. The next prime is 1020499637. The reversal of 1020499632 is 2369940201.

1020499632 is a `hidden beast` number, since 10 + 2 + 0 + 4 + 9 + 9 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1020499637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26998 + ... + 52629.

It is an arithmetic number, because the mean of its divisors is an integer number (48135126).

Almost surely, 2^1020499632 is an apocalyptic number.

1020499632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020499632 is an abundant number, since it is smaller than the sum of its proper divisors (1867607928).

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

1020499632 is a wasteful number, since it uses less digits than its factorization.

1020499632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79730 (or 79721 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1020499632 is about 31945.2599300741. The cubic root of 1020499632 is about 1006.7870425080.

The spelling of 1020499632 in words is "one billion, twenty million, four hundred ninety-nine thousand, six hundred thirty-two".