398412351 has 32 divisors (see below), whose sum is σ = 606668800. Its totient is φ = 261547704.

The previous prime is 398412307. The next prime is 398412361. The reversal of 398412351 is 153214893.

It is not a de Polignac number, because 398412351 - 2²⁶ = 331303487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398412361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145170 + ... + 147888.

It is an arithmetic number, because the mean of its divisors is an integer number (18958400).

Almost surely, 2^398412351 is an apocalyptic number.

398412351 is a deficient number, since it is larger than the sum of its proper divisors (208256449).

398412351 is an frugal number, since it uses more digits than its factorization.

398412351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2789 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 398412351 is about 19960.2693118104. The cubic root of 398412351 is about 735.8301823227.

The spelling of 398412351 in words is "three hundred ninety-eight million, four hundred twelve thousand, three hundred fifty-one".