398107294 has 16 divisors (see below), whose sum is σ = 658783440. Its totient is φ = 179259840.

The previous prime is 398107267. The next prime is 398107313. The reversal of 398107294 is 492701893.

It is a self number, because there is not a number n which added to its sum of digits gives 398107294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185664 + ... + 187795.

It is an arithmetic number, because the mean of its divisors is an integer number (41173965).

Almost surely, 2^398107294 is an apocalyptic number.

398107294 is a deficient number, since it is larger than the sum of its proper divisors (260676146).

398107294 is a wasteful number, since it uses less digits than its factorization.

398107294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373515.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 398107294 is about 19952.6262431791. The cubic root of 398107294 is about 735.6423304965.

The spelling of 398107294 in words is "three hundred ninety-eight million, one hundred seven thousand, two hundred ninety-four".