3969012540 has 24 divisors (see below), whose sum is σ = 11113235280. Its totient is φ = 1058403328.

The previous prime is 3969012539. The next prime is 3969012547. The reversal of 3969012540 is 452109693.

3969012540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969012547) 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, 33075045 + ... + 33075164.

It is an arithmetic number, because the mean of its divisors is an integer number (463051470).

Almost surely, 2^3969012540 is an apocalyptic number.

3969012540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3969012540 is an abundant number, since it is smaller than the sum of its proper divisors (7144222740).

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

3969012540 is a wasteful number, since it uses less digits than its factorization.

3969012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66150221 (or 66150219 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 3969012540 is about 63000.0995237309. The cubic root of 3969012540 is about 1583.2912938299.

The spelling of 3969012540 in words is "three billion, nine hundred sixty-nine million, twelve thousand, five hundred forty".