396187100 has 72 divisors (see below), whose sum is σ = 893755296. Its totient is φ = 152320000.

The previous prime is 396187097. The next prime is 396187117. The reversal of 396187100 is 1781693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290420 + ... + 291780.

It is an arithmetic number, because the mean of its divisors is an integer number (12413268).

Almost surely, 2^396187100 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 396187100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446877648).

396187100 is an abundant number, since it is smaller than the sum of its proper divisors (497568196).

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

396187100 is a wasteful number, since it uses less digits than its factorization.

396187100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 396187100 is about 19904.4492513609. The cubic root of 396187100 is about 734.4576806864.

The spelling of 396187100 in words is "three hundred ninety-six million, one hundred eighty-seven thousand, one hundred".