1490381972 has 12 divisors (see below), whose sum is σ = 2611601076. Its totient is φ = 744210240.

The previous prime is 1490381933. The next prime is 1490381987. The reversal of 1490381972 is 2791830941.

It can be written as a sum of positive squares in 2 ways, for example, as 422138116 + 1068243856 = 20546^2 + 32684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241763 + ... + 247850.

It is an arithmetic number, because the mean of its divisors is an integer number (217633423).

Almost surely, 2^1490381972 is an apocalyptic number.

It is an amenable number.

1490381972 is a deficient number, since it is larger than the sum of its proper divisors (1121219104).

1490381972 is a wasteful number, since it uses less digits than its factorization.

1490381972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490378 (or 490376 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1490381972 is about 38605.4655716001. The cubic root of 1490381972 is about 1142.2623515080.

The spelling of 1490381972 in words is "one billion, four hundred ninety million, three hundred eighty-one thousand, nine hundred seventy-two".