1490623280 has 20 divisors (see below), whose sum is σ = 3465699312. Its totient is φ = 596249280.

The previous prime is 1490623273. The next prime is 1490623327. The reversal of 1490623280 is 823260941.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1490623280.

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, 9316316 + ... + 9316475.

Almost surely, 2^1490623280 is an apocalyptic number.

1490623280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490623280 is an abundant number, since it is smaller than the sum of its proper divisors (1975076032).

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

1490623280 is a wasteful number, since it uses less digits than its factorization.

1490623280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18632804 (or 18632798 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1490623280 is about 38608.5907538724. The cubic root of 1490623280 is about 1142.3239961454.

The spelling of 1490623280 in words is "one billion, four hundred ninety million, six hundred twenty-three thousand, two hundred eighty".