346271428 has 12 divisors (see below), whose sum is σ = 637868560. Its totient is φ = 164023272.

The previous prime is 346271411. The next prime is 346271503. The reversal of 346271428 is 824172643.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2278026 + ... + 2278177.

Almost surely, 2^346271428 is an apocalyptic number.

346271428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

346271428 is a deficient number, since it is larger than the sum of its proper divisors (291597132).

346271428 is a wasteful number, since it uses less digits than its factorization.

346271428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556226 (or 4556224 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 346271428 is about 18608.3698372533. The cubic root of 346271428 is about 702.2184232237.

The spelling of 346271428 in words is "three hundred forty-six million, two hundred seventy-one thousand, four hundred twenty-eight".