396699240 has 64 divisors (see below), whose sum is σ = 1360114560. Its totient is φ = 90673920.

The previous prime is 396699227. The next prime is 396699241. The reversal of 396699240 is 42996693.

It is a self number, because there is not a number n which added to its sum of digits gives 396699240.

It is not an unprimeable number, because it can be changed into a prime (396699241) 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, 235291 + ... + 236970.

It is an arithmetic number, because the mean of its divisors is an integer number (21251790).

Almost surely, 2^396699240 is an apocalyptic number.

396699240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396699240 is an abundant number, since it is smaller than the sum of its proper divisors (963415320).

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

396699240 is a wasteful number, since it uses less digits than its factorization.

396699240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472282 (or 472278 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 396699240 is about 19917.3100593429. The cubic root of 396699240 is about 734.7740153975.

The spelling of 396699240 in words is "three hundred ninety-six million, six hundred ninety-nine thousand, two hundred forty".