346425660 has 288 divisors, whose sum is σ = 1320883200. Its totient is φ = 74400768.

The previous prime is 346425641. The next prime is 346425671. The reversal of 346425660 is 66524643.

346425660 is a `hidden beast` number, since 3 + 4 + 642 + 5 + 6 + 6 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 578041 + ... + 578639.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^346425660 is an apocalyptic number.

346425660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 346425660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660441600).

346425660 is an abundant number, since it is smaller than the sum of its proper divisors (974457540).

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

346425660 is a wasteful number, since it uses less digits than its factorization.

346425660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 346425660 is about 18612.5135325673. The cubic root of 346425660 is about 702.3226656062.

The spelling of 346425660 in words is "three hundred forty-six million, four hundred twenty-five thousand, six hundred sixty".