396659508 has 144 divisors (see below), whose sum is σ = 1137475584. Its totient is φ = 107110080.

The previous prime is 396659507. The next prime is 396659531. The reversal of 396659508 is 805956693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396659507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 856485 + ... + 856947.

It is an arithmetic number, because the mean of its divisors is an integer number (7899136).

Almost surely, 2^396659508 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 396659508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568737792).

396659508 is an abundant number, since it is smaller than the sum of its proper divisors (740816076).

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

396659508 is a wasteful number, since it uses less digits than its factorization.

396659508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 396659508 is about 19916.3126105211. The cubic root of 396659508 is about 734.7494837852.

The spelling of 396659508 in words is "three hundred ninety-six million, six hundred fifty-nine thousand, five hundred eight".