345624420 has 48 divisors (see below), whose sum is σ = 968869440. Its totient is φ = 92059776.

The previous prime is 345624401. The next prime is 345624443. The reversal of 345624420 is 24426543.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 58314 + ... + 63966.

It is an arithmetic number, because the mean of its divisors is an integer number (20184780).

Almost surely, 2^345624420 is an apocalyptic number.

345624420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345624420 is an abundant number, since it is smaller than the sum of its proper divisors (623245020).

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

345624420 is a wasteful number, since it uses less digits than its factorization.

345624420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684 (or 6682 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 345624420 is about 18590.9768436196. The cubic root of 345624420 is about 701.7807856043.

The spelling of 345624420 in words is "three hundred forty-five million, six hundred twenty-four thousand, four hundred twenty".