340747881 has 24 divisors (see below), whose sum is σ = 507229920. Its totient is φ = 202208256.

The previous prime is 340747873. The next prime is 340747903. The reversal of 340747881 is 188747043.

It is not a de Polignac number, because 340747881 - 2³ = 340747873 is a prime.

It is a super-2 number, since 2×340747881² = 232218236811980322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340747861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574321 + ... + 574913.

It is an arithmetic number, because the mean of its divisors is an integer number (21134580).

Almost surely, 2^340747881 is an apocalyptic number.

It is an amenable number.

340747881 is a deficient number, since it is larger than the sum of its proper divisors (166482039).

340747881 is an equidigital number, since it uses as much as digits as its factorization.

340747881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 340747881 is about 18459.3575457002. The cubic root of 340747881 is about 698.4645808467.

The spelling of 340747881 in words is "three hundred forty million, seven hundred forty-seven thousand, eight hundred eighty-one".