102290308 has 12 divisors (see below), whose sum is σ = 185180940. Its totient is φ = 49381472.

The previous prime is 102290291. The next prime is 102290329. The reversal of 102290308 is 803092201.

It can be written as a sum of positive squares in 2 ways, for example, as 83210884 + 19079424 = 9122^2 + 4368^2 .

It is a super-2 number, since 2×102290308² = 20926614221469728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440791 + ... + 441022.

It is an arithmetic number, because the mean of its divisors is an integer number (15431745).

Almost surely, 2^102290308 is an apocalyptic number.

It is an amenable number.

102290308 is a deficient number, since it is larger than the sum of its proper divisors (82890632).

102290308 is a wasteful number, since it uses less digits than its factorization.

102290308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881846 (or 881844 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 102290308 is about 10113.8671140173. The cubic root of 102290308 is about 467.6757256405.

The spelling of 102290308 in words is "one hundred two million, two hundred ninety thousand, three hundred eight".