1490209140 has 96 divisors (see below), whose sum is σ = 5019678720. Its totient is φ = 322690176.

The previous prime is 1490209117. The next prime is 1490209177. The reversal of 1490209140 is 419020941.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1490209098 and 1490209107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85392 + ... + 101351.

It is an arithmetic number, because the mean of its divisors is an integer number (52288320).

Almost surely, 2^1490209140 is an apocalyptic number.

1490209140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490209140 is an abundant number, since it is smaller than the sum of its proper divisors (3529469580).

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

1490209140 is a wasteful number, since it uses less digits than its factorization.

1490209140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186781 (or 186779 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1490209140 is about 38603.2270671767. The cubic root of 1490209140 is about 1142.2181956870.

The spelling of 1490209140 in words is "one billion, four hundred ninety million, two hundred nine thousand, one hundred forty".