394861152 has 96 divisors (see below), whose sum is σ = 1189810944. Its totient is φ = 112320000.

The previous prime is 394861141. The next prime is 394861153. The reversal of 394861152 is 251168493.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 394861152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394861153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167502 + ... + 169842.

It is an arithmetic number, because the mean of its divisors is an integer number (12393864).

Almost surely, 2^394861152 is an apocalyptic number.

394861152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394861152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594905472).

394861152 is an abundant number, since it is smaller than the sum of its proper divisors (794949792).

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

394861152 is a wasteful number, since it uses less digits than its factorization.

394861152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2604 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 394861152 is about 19871.1135067967. The cubic root of 394861152 is about 733.6374107194.

The spelling of 394861152 in words is "three hundred ninety-four million, eight hundred sixty-one thousand, one hundred fifty-two".