345290724 has 81 divisors (see below), whose sum is σ = 926859843. Its totient is φ = 108370224.

The previous prime is 345290713. The next prime is 345290753. The reversal of 345290724 is 427092543.

The square root of 345290724 is 18582.

It is a perfect power (a square), and thus also a powerful number.

345290724 is a `hidden beast` number, since 345 + 290 + 7 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2118267 + ... + 2118429.

Almost surely, 2^345290724 is an apocalyptic number.

345290724 is the 18582-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345290724

345290724 is an abundant number, since it is smaller than the sum of its proper divisors (581569119).

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

345290724 is a wasteful number, since it uses less digits than its factorization.

345290724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The cubic root of 345290724 is about 701.5548593924.

Multiplying 345290724 by its sum of digits (36), we get a square (12430466064 = 111492²).

345290724 divided by its sum of digits (36) gives a square (9591409 = 3097²).

The spelling of 345290724 in words is "three hundred forty-five million, two hundred ninety thousand, seven hundred twenty-four".