672491490 has 32 divisors (see below), whose sum is σ = 1760705856. Its totient is φ = 163028160.

The previous prime is 672491473. The next prime is 672491509. The reversal of 672491490 is 94194276.

It is a super-3 number, since 3×672491490³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018597 + ... + 1019256.

It is an arithmetic number, because the mean of its divisors is an integer number (55022058).

Almost surely, 2^672491490 is an apocalyptic number.

672491490 is an abundant number, since it is smaller than the sum of its proper divisors (1088214366).

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

672491490 is a wasteful number, since it uses less digits than its factorization.

672491490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037874.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 672491490 is about 25932.4408801023. The cubic root of 672491490 is about 876.1173165996.

The spelling of 672491490 in words is "six hundred seventy-two million, four hundred ninety-one thousand, four hundred ninety".