2140404432 has 40 divisors (see below), whose sum is σ = 5591517120. Its totient is φ = 705450240.

The previous prime is 2140404407. The next prime is 2140404437. The reversal of 2140404432 is 2344040412.

It is a happy number.

It is a super-2 number, since 2×2140404432² = 9162662265050485248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140404437) 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, 246244 + ... + 254787.

It is an arithmetic number, because the mean of its divisors is an integer number (139787928).

Almost surely, 2^2140404432 is an apocalyptic number.

It is an amenable number.

2140404432 is an abundant number, since it is smaller than the sum of its proper divisors (3451112688).

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

2140404432 is a wasteful number, since it uses less digits than its factorization.

2140404432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501131 (or 501125 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2140404432 is about 46264.5050984013. The cubic root of 2140404432 is about 1288.7399173091.

Adding to 2140404432 its reverse (2344040412), we get a palindrome (4484444844).

The spelling of 2140404432 in words is "two billion, one hundred forty million, four hundred four thousand, four hundred thirty-two".