39864195 has 72 divisors (see below), whose sum is σ = 81628560. Its totient is φ = 17942400.

The previous prime is 39864173. The next prime is 39864197. The reversal of 39864195 is 59146893.

It is a happy number.

It is not a de Polignac number, because 39864195 - 2⁵ = 39864163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 39864195.

It is not an unprimeable number, because it can be changed into a prime (39864197) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 222616 + ... + 222794.

It is an arithmetic number, because the mean of its divisors is an integer number (1133730).

Almost surely, 2^39864195 is an apocalyptic number.

39864195 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39864195 is an abundant number, since it is smaller than the sum of its proper divisors (41764365).

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

39864195 is a wasteful number, since it uses less digits than its factorization.

39864195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 39864195 is about 6313.8098640995. The cubic root of 39864195 is about 341.6077116865.

The spelling of 39864195 in words is "thirty-nine million, eight hundred sixty-four thousand, one hundred ninety-five".