1490492420 has 24 divisors (see below), whose sum is σ = 3167748864. Its totient is φ = 589013216.

The previous prime is 1490492401. The next prime is 1490492441. The reversal of 1490492420 is 242940941.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447284 + ... + 450603.

It is an arithmetic number, because the mean of its divisors is an integer number (131989536).

Almost surely, 2^1490492420 is an apocalyptic number.

1490492420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490492420 is an abundant number, since it is smaller than the sum of its proper divisors (1677256444).

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

1490492420 is a wasteful number, since it uses less digits than its factorization.

1490492420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897979 (or 897977 counting only the distinct ones).

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

The square root of 1490492420 is about 38606.8960161264. The cubic root of 1490492420 is about 1142.2905674236.

The spelling of 1490492420 in words is "one billion, four hundred ninety million, four hundred ninety-two thousand, four hundred twenty".