345677406 has 16 divisors (see below), whose sum is σ = 691542144. Its totient is φ = 115194584.

The previous prime is 345677399. The next prime is 345677417. The reversal of 345677406 is 604776543.

It is a happy number.

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, 31111 + ... + 40733.

It is an arithmetic number, because the mean of its divisors is an integer number (43221384).

Almost surely, 2^345677406 is an apocalyptic number.

345677406 is an abundant number, since it is smaller than the sum of its proper divisors (345864738).

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

345677406 is a wasteful number, since it uses less digits than its factorization.

345677406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15615.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 345677406 is about 18592.4018351584. The cubic root of 345677406 is about 701.8166459723.

The spelling of 345677406 in words is "three hundred forty-five million, six hundred seventy-seven thousand, four hundred six".