499791432 has 128 divisors (see below), whose sum is σ = 1527552000. Its totient is φ = 133014528.

The previous prime is 499791407. The next prime is 499791437. The reversal of 499791432 is 234197994.

It is a happy number.

It is a super-2 number, since 2×499791432² = 499582951001221248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499791437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293319 + ... + 295017.

It is an arithmetic number, because the mean of its divisors is an integer number (11934000).

Almost surely, 2^499791432 is an apocalyptic number.

499791432 is a gapful number since it is divisible by the number (42) 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 499791432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763776000).

499791432 is an abundant number, since it is smaller than the sum of its proper divisors (1027760568).

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

499791432 is a wasteful number, since it uses less digits than its factorization.

499791432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1831 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 499791432 is about 22356.0155662855. The cubic root of 499791432 is about 793.5901502812.

The spelling of 499791432 in words is "four hundred ninety-nine million, seven hundred ninety-one thousand, four hundred thirty-two".