3219952440 has 32 divisors (see below), whose sum is σ = 9659857680. Its totient is φ = 858653952.

The previous prime is 3219952427. The next prime is 3219952441. The reversal of 3219952440 is 442599123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3219952441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13416349 + ... + 13416588.

Almost surely, 2^3219952440 is an apocalyptic number.

3219952440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3219952440 is an abundant number, since it is smaller than the sum of its proper divisors (6439905240).

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

3219952440 is a wasteful number, since it uses less digits than its factorization.

3219952440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26832951 (or 26832947 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 3219952440 is about 56744.6247674615. The cubic root of 3219952440 is about 1476.6689816359.

The spelling of 3219952440 in words is "three billion, two hundred nineteen million, nine hundred fifty-two thousand, four hundred forty".