312342398 has 4 divisors (see below), whose sum is σ = 468513600. Its totient is φ = 156171198.

The previous prime is 312342361. The next prime is 312342413. The reversal of 312342398 is 893243213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893243213 = 463 ⋅1929251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78085598 + ... + 78085601.

It is an arithmetic number, because the mean of its divisors is an integer number (117128400).

Almost surely, 2^312342398 is an apocalyptic number.

312342398 is a deficient number, since it is larger than the sum of its proper divisors (156171202).

312342398 is a wasteful number, since it uses less digits than its factorization.

312342398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156171201.

The product of its digits is 31104, while the sum is 35.

The square root of 312342398 is about 17673.2113097762. The cubic root of 312342398 is about 678.4903055935.

The spelling of 312342398 in words is "three hundred twelve million, three hundred forty-two thousand, three hundred ninety-eight".