3953251540 has 24 divisors (see below), whose sum is σ = 9487804032. Its totient is φ = 1355400480.

The previous prime is 3953251513. The next prime is 3953251543. The reversal of 3953251540 is 451523593.

It is a self number, because there is not a number n which added to its sum of digits gives 3953251540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3953251543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14118616 + ... + 14118895.

It is an arithmetic number, because the mean of its divisors is an integer number (395325168).

Almost surely, 2^3953251540 is an apocalyptic number.

It is an amenable number.

3953251540 is an abundant number, since it is smaller than the sum of its proper divisors (5534552492).

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

3953251540 is a wasteful number, since it uses less digits than its factorization.

3953251540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28237527 (or 28237525 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 3953251540 is about 62874.8879919479. The cubic root of 3953251540 is about 1581.1927568835.

The spelling of 3953251540 in words is "three billion, nine hundred fifty-three million, two hundred fifty-one thousand, five hundred forty".