1490891910 has 16 divisors (see below), whose sum is σ = 3578140656. Its totient is φ = 397571168.

The previous prime is 1490891873. The next prime is 1490891923. The reversal of 1490891910 is 191980941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24848169 + ... + 24848228.

It is an arithmetic number, because the mean of its divisors is an integer number (223633791).

Almost surely, 2^1490891910 is an apocalyptic number.

1490891910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1490891910 is an abundant number, since it is smaller than the sum of its proper divisors (2087248746).

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

1490891910 is a wasteful number, since it uses less digits than its factorization.

1490891910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49696407.

The product of its (nonzero) digits is 23328, while the sum is 42.

The square root of 1490891910 is about 38612.0694861076. The cubic root of 1490891910 is about 1142.3926126468.

The spelling of 1490891910 in words is "one billion, four hundred ninety million, eight hundred ninety-one thousand, nine hundred ten".