1490031917 has 8 divisors (see below), whose sum is σ = 1630404192. Its totient is φ = 1350478800.

The previous prime is 1490031901. The next prime is 1490031937. The reversal of 1490031917 is 7191300941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1490031917 - 2⁴ = 1490031901 is a prime.

It is a super-2 number, since 2×1490031917² = 4440390227357389778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490031937) by changing a digit.

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, 200978 + ... + 208259.

It is an arithmetic number, because the mean of its divisors is an integer number (203800524).

Almost surely, 2^1490031917 is an apocalyptic number.

It is an amenable number.

1490031917 is a deficient number, since it is larger than the sum of its proper divisors (140372275).

1490031917 is a wasteful number, since it uses less digits than its factorization.

1490031917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409579.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1490031917 is about 38600.9315561166. The cubic root of 1490031917 is about 1142.1729144902.

The spelling of 1490031917 in words is "one billion, four hundred ninety million, thirty-one thousand, nine hundred seventeen".