396739343634 has 32 divisors (see below), whose sum is σ = 837719263680. Its totient is φ = 124914327552.

The previous prime is 396739343603. The next prime is 396739343639. The reversal of 396739343634 is 436343937693.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (396739343639) 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, 5125039 + ... + 5201874.

It is an arithmetic number, because the mean of its divisors is an integer number (26178726990).

Almost surely, 2^396739343634 is an apocalyptic number.

396739343634 is an abundant number, since it is smaller than the sum of its proper divisors (440979920046).

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

396739343634 is a wasteful number, since it uses less digits than its factorization.

396739343634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10327274.

The product of its digits is 79361856, while the sum is 60.

The spelling of 396739343634 in words is "three hundred ninety-six billion, seven hundred thirty-nine million, three hundred forty-three thousand, six hundred thirty-four".