349404940 has 48 divisors (see below), whose sum is σ = 745242624. Its totient is φ = 137592000.

The previous prime is 349404901. The next prime is 349404941. The reversal of 349404940 is 49404943.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 349404940.

It is not an unprimeable number, because it can be changed into a prime (349404941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383085 + ... + 383995.

It is an arithmetic number, because the mean of its divisors is an integer number (15525888).

Almost surely, 2^349404940 is an apocalyptic number.

It is an amenable number.

349404940 is an abundant number, since it is smaller than the sum of its proper divisors (395837684).

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

349404940 is a wasteful number, since it uses less digits than its factorization.

349404940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 349404940 is about 18692.3765209242. The cubic root of 349404940 is about 704.3302594518.

The spelling of 349404940 in words is "three hundred forty-nine million, four hundred four thousand, nine hundred forty".