1308226990 has 48 divisors (see below), whose sum is σ = 2763625392. Its totient is φ = 444546816.

The previous prime is 1308226987. The next prime is 1308227021. The reversal of 1308226990 is 996228031.

It is a happy number.

It is a super-2 number, since 2×1308226990² = 3422915714728920200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43557 + ... + 67183.

It is an arithmetic number, because the mean of its divisors is an integer number (57575529).

Almost surely, 2^1308226990 is an apocalyptic number.

1308226990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308226990 is an abundant number, since it is smaller than the sum of its proper divisors (1455398402).

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

1308226990 is a wasteful number, since it uses less digits than its factorization.

1308226990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23761 (or 23754 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1308226990 is about 36169.4206478345. The cubic root of 1308226990 is about 1093.6903199436.

The spelling of 1308226990 in words is "one billion, three hundred eight million, two hundred twenty-six thousand, nine hundred ninety".