39696378 has 16 divisors (see below), whose sum is σ = 80481216. Its totient is φ = 13050720.

The previous prime is 39696373. The next prime is 39696409. The reversal of 39696378 is 87369693.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39696378.

It is not an unprimeable number, because it can be changed into a prime (39696373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44878 + ... + 45753.

It is an arithmetic number, because the mean of its divisors is an integer number (5030076).

Almost surely, 2^39696378 is an apocalyptic number.

39696378 is an abundant number, since it is smaller than the sum of its proper divisors (40784838).

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

39696378 is a wasteful number, since it uses less digits than its factorization.

39696378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90709.

The product of its digits is 1469664, while the sum is 51.

The square root of 39696378 is about 6300.5061701422. The cubic root of 39696378 is about 341.1276801333.

The spelling of 39696378 in words is "thirty-nine million, six hundred ninety-six thousand, three hundred seventy-eight".