398841396 has 24 divisors (see below), whose sum is σ = 941088960. Its totient is φ = 131452992.

The previous prime is 398841353. The next prime is 398841427. The reversal of 398841396 is 693148893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185656 + ... + 187791.

It is an arithmetic number, because the mean of its divisors is an integer number (39212040).

Almost surely, 2^398841396 is an apocalyptic number.

It is an amenable number.

398841396 is an abundant number, since it is smaller than the sum of its proper divisors (542247564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398841396 is a wasteful number, since it uses less digits than its factorization.

398841396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373543 (or 373541 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 398841396 is about 19971.0138951431. The cubic root of 398841396 is about 736.0942228339.

The spelling of 398841396 in words is "three hundred ninety-eight million, eight hundred forty-one thousand, three hundred ninety-six".