349402425 has 36 divisors (see below), whose sum is σ = 589567920. Its totient is φ = 182537600.

The previous prime is 349402379. The next prime is 349402429. The reversal of 349402425 is 524204943.

It is not a de Polignac number, because 349402425 - 2⁷ = 349402297 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (349402429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1243285 + ... + 1243565.

Almost surely, 2^349402425 is an apocalyptic number.

It is an amenable number.

349402425 is a deficient number, since it is larger than the sum of its proper divisors (240165495).

349402425 is an equidigital number, since it uses as much as digits as its factorization.

349402425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 349402425 is about 18692.3092473883. The cubic root of 349402425 is about 704.3285695359.

The spelling of 349402425 in words is "three hundred forty-nine million, four hundred two thousand, four hundred twenty-five".