344078428 has 12 divisors (see below), whose sum is σ = 604791432. Its totient is φ = 171280880.

The previous prime is 344078407. The next prime is 344078431. The reversal of 344078428 is 824870443.

It is a super-2 number, since 2×344078428² = 236779929229902368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188563 + ... + 190378.

It is an arithmetic number, because the mean of its divisors is an integer number (50399286).

Almost surely, 2^344078428 is an apocalyptic number.

It is an amenable number.

344078428 is a deficient number, since it is larger than the sum of its proper divisors (260713004).

344078428 is a wasteful number, since it uses less digits than its factorization.

344078428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379172 (or 379170 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 344078428 is about 18549.3511476817. The cubic root of 344078428 is about 700.7328569659.

The spelling of 344078428 in words is "three hundred forty-four million, seventy-eight thousand, four hundred twenty-eight".