3132216540 has 72 divisors (see below), whose sum is σ = 9852963120. Its totient is φ = 835256448.

The previous prime is 3132216539. The next prime is 3132216547. The reversal of 3132216540 is 456122313.

3132216540 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 2 + 1 + 654 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132216547) 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, 317385 + ... + 327104.

It is an arithmetic number, because the mean of its divisors is an integer number (136846710).

Almost surely, 2^3132216540 is an apocalyptic number.

3132216540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3132216540 is an abundant number, since it is smaller than the sum of its proper divisors (6720746580).

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

3132216540 is a wasteful number, since it uses less digits than its factorization.

3132216540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644513 (or 644499 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3132216540 is about 55966.2089121641. The cubic root of 3132216540 is about 1463.1334061067.

Adding to 3132216540 its reverse (456122313), we get a palindrome (3588338853).

The spelling of 3132216540 in words is "three billion, one hundred thirty-two million, two hundred sixteen thousand, five hundred forty".