347374820 has 24 divisors (see below), whose sum is σ = 785602104. Its totient is φ = 128261376.

The previous prime is 347374763. The next prime is 347374823. The reversal of 347374820 is 28473743.

It can be written as a sum of positive squares in 4 ways, for example, as 22221796 + 325153024 = 4714^2 + 18032^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (347374823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667769 + ... + 668288.

It is an arithmetic number, because the mean of its divisors is an integer number (32733421).

Almost surely, 2^347374820 is an apocalyptic number.

It is an amenable number.

347374820 is an abundant number, since it is smaller than the sum of its proper divisors (438227284).

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

347374820 is a wasteful number, since it uses less digits than its factorization.

347374820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336079 (or 1336077 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 347374820 is about 18637.9939907706. The cubic root of 347374820 is about 702.9635040984.

The spelling of 347374820 in words is "three hundred forty-seven million, three hundred seventy-four thousand, eight hundred twenty".