39972102 has 16 divisors (see below), whose sum is σ = 80017200. Its totient is φ = 13311872.

The previous prime is 39972073. The next prime is 39972109. The reversal of 39972102 is 20127993.

It is a super-3 number, since 3×39972102³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39972109) 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, 6274 + ... + 10922.

It is an arithmetic number, because the mean of its divisors is an integer number (5001075).

Almost surely, 2^39972102 is an apocalyptic number.

39972102 is an abundant number, since it is smaller than the sum of its proper divisors (40045098).

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

39972102 is a wasteful number, since it uses less digits than its factorization.

39972102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 39972102 is about 6322.3494050867. The cubic root of 39972102 is about 341.9156626622.

The spelling of 39972102 in words is "thirty-nine million, nine hundred seventy-two thousand, one hundred two".