1308226290 has 32 divisors (see below), whose sum is σ = 3588278400. Its totient is φ = 299023104.

The previous prime is 1308226277. The next prime is 1308226321. The reversal of 1308226290 is 926228031.

It is a happy number.

It is a super-2 number, since 2×1308226290² = 3422912051694328200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3114615 + ... + 3115034.

It is an arithmetic number, because the mean of its divisors is an integer number (112133700).

Almost surely, 2^1308226290 is an apocalyptic number.

1308226290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308226290 is an abundant number, since it is smaller than the sum of its proper divisors (2280052110).

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

1308226290 is a wasteful number, since it uses less digits than its factorization.

1308226290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229666.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1308226290 is about 36169.4109711507. The cubic root of 1308226290 is about 1093.6901248747.

The spelling of 1308226290 in words is "one billion, three hundred eight million, two hundred twenty-six thousand, two hundred ninety".