490748400 has 90 divisors (see below), whose sum is σ = 1703045760. Its totient is φ = 130865280.

The previous prime is 490748389. The next prime is 490748407. The reversal of 490748400 is 4847094.

It is a tau number, because it is divible by the number of its divisors (90).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490748407) 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 17 ways as a sum of consecutive naturals, for example, 64560 + ... + 71759.

Almost surely, 2^490748400 is an apocalyptic number.

490748400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490748400 is an abundant number, since it is smaller than the sum of its proper divisors (1212297360).

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

490748400 is a wasteful number, since it uses less digits than its factorization.

490748400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136343 (or 136329 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 490748400 is about 22152.8418041569. The cubic root of 490748400 is about 788.7746854306.

The spelling of 490748400 in words is "four hundred ninety million, seven hundred forty-eight thousand, four hundred".