346672405 has 16 divisors (see below), whose sum is σ = 423895680. Its totient is φ = 272112192.

The previous prime is 346672387. The next prime is 346672421. The reversal of 346672405 is 504276643.

It is not a de Polignac number, because 346672405 - 2⁵ = 346672373 is a prime.

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, 88192 + ... + 92038.

It is an arithmetic number, because the mean of its divisors is an integer number (26493480).

Almost surely, 2^346672405 is an apocalyptic number.

It is an amenable number.

346672405 is a deficient number, since it is larger than the sum of its proper divisors (77223275).

346672405 is a wasteful number, since it uses less digits than its factorization.

346672405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 346672405 is about 18619.1408233570. The cubic root of 346672405 is about 702.4893713855.

The spelling of 346672405 in words is "three hundred forty-six million, six hundred seventy-two thousand, four hundred five".