340400670 has 32 divisors (see below), whose sum is σ = 820018080. Its totient is φ = 90433920.

The previous prime is 340400663. The next prime is 340400681. The reversal of 340400670 is 76004043.

It is a super-2 number, since 2×340400670² = 231745232272897800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340400670.

It is a congruent 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, 13021 + ... + 29160.

It is an arithmetic number, because the mean of its divisors is an integer number (25625565).

Almost surely, 2^340400670 is an apocalyptic number.

340400670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340400670 is an abundant number, since it is smaller than the sum of its proper divisors (479617410).

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

340400670 is a wasteful number, since it uses less digits than its factorization.

340400670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42460.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 340400670 is about 18449.9504064374. The cubic root of 340400670 is about 698.2272626639.

The spelling of 340400670 in words is "three hundred forty million, four hundred thousand, six hundred seventy".