345451730 has 96 divisors (see below), whose sum is σ = 750045744. Its totient is φ = 113467392.

The previous prime is 345451709. The next prime is 345451751. The reversal of 345451730 is 37154543.

It is an interprime number because it is at equal distance from previous prime (345451709) and next prime (345451751).

It can be written as a sum of positive squares in 8 ways, for example, as 63984001 + 281467729 = 7999^2 + 16777^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797594 + ... + 798026.

Almost surely, 2^345451730 is an apocalyptic number.

345451730 is an abundant number, since it is smaller than the sum of its proper divisors (404594014).

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

345451730 is a wasteful number, since it uses less digits than its factorization.

345451730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 345451730 is about 18586.3318059266. The cubic root of 345451730 is about 701.6638853829.

The spelling of 345451730 in words is "three hundred forty-five million, four hundred fifty-one thousand, seven hundred thirty".