1489163990 has 16 divisors (see below), whose sum is σ = 2699781840. Its totient is φ = 591379680.

The previous prime is 1489163989. The next prime is 1489163999. The reversal of 1489163990 is 993619841.

It is a super-2 number, since 2×1489163990² = 4435218778225440200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489163999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534281 + ... + 537060.

It is an arithmetic number, because the mean of its divisors is an integer number (168736365).

Almost surely, 2^1489163990 is an apocalyptic number.

1489163990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1489163990 is a deficient number, since it is larger than the sum of its proper divisors (1210617850).

1489163990 is a wasteful number, since it uses less digits than its factorization.

1489163990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071487.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 1489163990 is about 38589.6876121069. The cubic root of 1489163990 is about 1141.9511037490.

The spelling of 1489163990 in words is "one billion, four hundred eighty-nine million, one hundred sixty-three thousand, nine hundred ninety".