3203132240 has 80 divisors (see below), whose sum is σ = 9284941440. Its totient is φ = 998376960.

The previous prime is 3203132123. The next prime is 3203132249. The reversal of 3203132240 is 422313023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3203132240² = 20520112293854835200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3203132249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253835 + ... + 266154.

It is an arithmetic number, because the mean of its divisors is an integer number (116061768).

Almost surely, 2^3203132240 is an apocalyptic number.

It is an amenable number.

3203132240 is an abundant number, since it is smaller than the sum of its proper divisors (6081809200).

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

3203132240 is a wasteful number, since it uses less digits than its factorization.

3203132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520020 (or 520014 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3203132240 is about 56596.2210752626. The cubic root of 3203132240 is about 1474.0932456183.

Adding to 3203132240 its reverse (422313023), we get a palindrome (3625445263).

The spelling of 3203132240 in words is "three billion, two hundred three million, one hundred thirty-two thousand, two hundred forty".