345402478 has 8 divisors (see below), whose sum is σ = 518296968. Its totient is φ = 172636824.

The previous prime is 345402443. The next prime is 345402479. The reversal of 345402478 is 874204543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345402479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25201 + ... + 36412.

It is an arithmetic number, because the mean of its divisors is an integer number (64787121).

Almost surely, 2^345402478 is an apocalyptic number.

345402478 is a deficient number, since it is larger than the sum of its proper divisors (172894490).

345402478 is a wasteful number, since it uses less digits than its factorization.

345402478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64418.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 345402478 is about 18585.0068065632. The cubic root of 345402478 is about 701.6305377503.

The spelling of 345402478 in words is "three hundred forty-five million, four hundred two thousand, four hundred seventy-eight".