346120640 has 56 divisors (see below), whose sum is σ = 826264032. Its totient is φ = 138101760.

The previous prime is 346120633. The next prime is 346120651. The reversal of 346120640 is 46021643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154730 + ... + 156950.

Almost surely, 2^346120640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 346120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413132016).

346120640 is an abundant number, since it is smaller than the sum of its proper divisors (480143392).

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

346120640 is a wasteful number, since it uses less digits than its factorization.

346120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 346120640 is about 18604.3177784083. The cubic root of 346120640 is about 702.1164786445.

The spelling of 346120640 in words is "three hundred forty-six million, one hundred twenty thousand, six hundred forty".