345408724 has 6 divisors (see below), whose sum is σ = 604465274. Its totient is φ = 172704360.

The previous prime is 345408709. The next prime is 345408743. The reversal of 345408724 is 427804543.

It can be written as a sum of positive squares in only one way, i.e., 335549124 + 9859600 = 18318^2 + 3140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43176087 + ... + 43176094.

Almost surely, 2^345408724 is an apocalyptic number.

It is an amenable number.

345408724 is a deficient number, since it is larger than the sum of its proper divisors (259056550).

345408724 is a wasteful number, since it uses less digits than its factorization.

345408724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86352185 (or 86352183 counting only the distinct ones).

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

The square root of 345408724 is about 18585.1748444829. The cubic root of 345408724 is about 701.6347669787.

It can be divided in two parts, 34540 and 8724, that added together give a square (43264 = 208²).

The spelling of 345408724 in words is "three hundred forty-five million, four hundred eight thousand, seven hundred twenty-four".