349642512 has 30 divisors (see below), whose sum is σ = 978513822. Its totient is φ = 116547456.

The previous prime is 349642493. The next prime is 349642523. The reversal of 349642512 is 215246943.

It is a happy number.

349642512 is a `hidden beast` number, since 3 + 4 + 9 + 642 + 5 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 238887936 + 110754576 = 15456^2 + 10524^2 .

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 5 ways as a sum of consecutive naturals, for example, 1213893 + ... + 1214180.

Almost surely, 2^349642512 is an apocalyptic number.

It is an amenable number.

349642512 is an abundant number, since it is smaller than the sum of its proper divisors (628871310).

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

349642512 is a wasteful number, since it uses less digits than its factorization.

349642512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428087 (or 2428078 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 349642512 is about 18698.7302242692. The cubic root of 349642512 is about 704.4898557820.

The spelling of 349642512 in words is "three hundred forty-nine million, six hundred forty-two thousand, five hundred twelve".