307840090 has 32 divisors (see below), whose sum is σ = 590688000. Its totient is φ = 115172928.

The previous prime is 307840079. The next prime is 307840121. The reversal of 307840090 is 90048703.

It is a happy number.

307840090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×307840090² = 189531042022416200, which contains 22 as substring.

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, 4756 + ... + 25264.

It is an arithmetic number, because the mean of its divisors is an integer number (18459000).

Almost surely, 2^307840090 is an apocalyptic number.

307840090 is a deficient number, since it is larger than the sum of its proper divisors (282847910).

307840090 is a wasteful number, since it uses less digits than its factorization.

307840090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20614.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 307840090 is about 17545.3723243481. The cubic root of 307840090 is about 675.2144467238.

Adding to 307840090 its reverse (90048703), we get a palindrome (397888793).

The spelling of 307840090 in words is "three hundred seven million, eight hundred forty thousand, ninety".