396409016 has 8 divisors (see below), whose sum is σ = 743266920. Its totient is φ = 198204504.

The previous prime is 396409003. The next prime is 396409019. The reversal of 396409016 is 610904693.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396409019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24775556 + ... + 24775571.

It is an arithmetic number, because the mean of its divisors is an integer number (92908365).

Almost surely, 2^396409016 is an apocalyptic number.

It is an amenable number.

396409016 is a deficient number, since it is larger than the sum of its proper divisors (346857904).

396409016 is a wasteful number, since it uses less digits than its factorization.

396409016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49551133 (or 49551129 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 396409016 is about 19910.0230035025. The cubic root of 396409016 is about 734.5947855111.

The spelling of 396409016 in words is "three hundred ninety-six million, four hundred nine thousand, sixteen".