39398994 has 64 divisors (see below), whose sum is σ = 91728000. Its totient is φ = 12519360.

The previous prime is 39398987. The next prime is 39398999. The reversal of 39398994 is 49989393.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 39398994.

It is not an unprimeable number, because it can be changed into a prime (39398999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217584 + ... + 217764.

It is an arithmetic number, because the mean of its divisors is an integer number (1433250).

Almost surely, 2^39398994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39398994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45864000).

39398994 is an abundant number, since it is smaller than the sum of its proper divisors (52329006).

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

39398994 is a wasteful number, since it uses less digits than its factorization.

39398994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 39398994 is about 6276.8617955153. The cubic root of 39398994 is about 340.2736954214.

The spelling of 39398994 in words is "thirty-nine million, three hundred ninety-eight thousand, nine hundred ninety-four".