396969760 has 96 divisors (see below), whose sum is σ = 1028002752. Its totient is φ = 143662080.

The previous prime is 396969757. The next prime is 396969763. The reversal of 396969760 is 67969693.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (396969757) and next prime (396969763).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (396969763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497682 + ... + 498478.

It is an arithmetic number, because the mean of its divisors is an integer number (10708362).

Almost surely, 2^396969760 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 396969760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514001376).

396969760 is an abundant number, since it is smaller than the sum of its proper divisors (631032992).

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

396969760 is a wasteful number, since it uses less digits than its factorization.

396969760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 55.

The square root of 396969760 is about 19924.0999796729. The cubic root of 396969760 is about 734.9409982409.

The spelling of 396969760 in words is "three hundred ninety-six million, nine hundred sixty-nine thousand, seven hundred sixty".