499748400 has 120 divisors (see below), whose sum is σ = 1778772560. Its totient is φ = 133263360.

The previous prime is 499748399. The next prime is 499748407. The reversal of 499748400 is 4847994.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499748407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12337 + ... + 33936.

Almost surely, 2^499748400 is an apocalyptic number.

499748400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499748400 is an abundant number, since it is smaller than the sum of its proper divisors (1279024160).

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

499748400 is a wasteful number, since it uses less digits than its factorization.

499748400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46300 (or 46283 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 499748400 is about 22355.0531200442. The cubic root of 499748400 is about 793.5673736126.

The spelling of 499748400 in words is "four hundred ninety-nine million, seven hundred forty-eight thousand, four hundred".