1490689880 has 64 divisors (see below), whose sum is σ = 3574225440. Its totient is φ = 557586432.

The previous prime is 1490689861. The next prime is 1490689903. The reversal of 1490689880 is 889860941.

It is a congruent number.

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, 99779 + ... + 113741.

Almost surely, 2^1490689880 is an apocalyptic number.

1490689880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1490689880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787112720).

1490689880 is an abundant number, since it is smaller than the sum of its proper divisors (2083535560).

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

1490689880 is a wasteful number, since it uses less digits than its factorization.

1490689880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14148 (or 14144 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 53.

The square root of 1490689880 is about 38609.4532465820. The cubic root of 1490689880 is about 1142.3410086363.

The spelling of 1490689880 in words is "one billion, four hundred ninety million, six hundred eighty-nine thousand, eight hundred eighty".