398159412 has 96 divisors (see below), whose sum is σ = 1107025920. Its totient is φ = 108984960.

The previous prime is 398159407. The next prime is 398159423. The reversal of 398159412 is 214951893.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277914 + ... + 279342.

It is an arithmetic number, because the mean of its divisors is an integer number (11531520).

Almost surely, 2^398159412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398159412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553512960).

398159412 is an abundant number, since it is smaller than the sum of its proper divisors (708866508).

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

398159412 is a wasteful number, since it uses less digits than its factorization.

398159412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 398159412 is about 19953.9322440465. The cubic root of 398159412 is about 735.6744311677.

The spelling of 398159412 in words is "three hundred ninety-eight million, one hundred fifty-nine thousand, four hundred twelve".