396097620 has 144 divisors (see below), whose sum is σ = 1203164928. Its totient is φ = 97310720.

The previous prime is 396097609. The next prime is 396097627. The reversal of 396097620 is 26790693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396097627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 918805 + ... + 919235.

It is an arithmetic number, because the mean of its divisors is an integer number (8355312).

Almost surely, 2^396097620 is an apocalyptic number.

396097620 is a gapful number since it is divisible by the number (30) 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 396097620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601582464).

396097620 is an abundant number, since it is smaller than the sum of its proper divisors (807067308).

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

396097620 is a wasteful number, since it uses less digits than its factorization.

396097620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 396097620 is about 19902.2013857764. The cubic root of 396097620 is about 734.4023833942.

The spelling of 396097620 in words is "three hundred ninety-six million, ninety-seven thousand, six hundred twenty".