346445406 has 12 divisors (see below), whose sum is σ = 750631752. Its totient is φ = 115481796.

The previous prime is 346445401. The next prime is 346445461. The reversal of 346445406 is 604544643.

346445406 is a `hidden beast` number, since 3 + 4 + 644 + 5 + 4 + 0 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346445401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9623466 + ... + 9623501.

It is an arithmetic number, because the mean of its divisors is an integer number (62552646).

Almost surely, 2^346445406 is an apocalyptic number.

346445406 is an abundant number, since it is smaller than the sum of its proper divisors (404186346).

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

346445406 is a wasteful number, since it uses less digits than its factorization.

346445406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19246975 (or 19246972 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 346445406 is about 18613.0439745894. The cubic root of 346445406 is about 702.3360093059.

The spelling of 346445406 in words is "three hundred forty-six million, four hundred forty-five thousand, four hundred six".