490396140 has 96 divisors (see below), whose sum is σ = 1643060160. Its totient is φ = 120711168.

The previous prime is 490396139. The next prime is 490396169. The reversal of 490396140 is 41693094.

490396140 is a `hidden beast` number, since 4 + 9 + 0 + 39 + 614 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 490396095 and 490396104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27909 + ... + 41948.

It is an arithmetic number, because the mean of its divisors is an integer number (17115210).

Almost surely, 2^490396140 is an apocalyptic number.

It is an amenable number.

490396140 is an abundant number, since it is smaller than the sum of its proper divisors (1152664020).

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

490396140 is a wasteful number, since it uses less digits than its factorization.

490396140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69888 (or 69880 counting only the distinct ones).

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

The square root of 490396140 is about 22144.8897039475. The cubic root of 490396140 is about 788.5859123386.

The spelling of 490396140 in words is "four hundred ninety million, three hundred ninety-six thousand, one hundred forty".