3940100172 has 72 divisors (see below), whose sum is σ = 10423613200. Its totient is φ = 1301282496.

The previous prime is 3940100147. The next prime is 3940100173. The reversal of 3940100172 is 2710010493.

3940100172 is a `hidden beast` number, since 394 + 0 + 100 + 172 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3940100173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87354 + ... + 124542.

Almost surely, 2^3940100172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940100172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5211806600).

3940100172 is an abundant number, since it is smaller than the sum of its proper divisors (6483513028).

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

3940100172 is a wasteful number, since it uses less digits than its factorization.

3940100172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37317 (or 37303 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 3940100172 is about 62770.2172371579. The cubic root of 3940100172 is about 1579.4374128008.

The spelling of 3940100172 in words is "three billion, nine hundred forty million, one hundred thousand, one hundred seventy-two".