1140040432 has 40 divisors (see below), whose sum is σ = 2327993360. Its totient is φ = 539343360.

The previous prime is 1140040423. The next prime is 1140040453. The reversal of 1140040432 is 2340400411.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308548 + ... + 312220.

It is an arithmetic number, because the mean of its divisors is an integer number (58199834).

Almost surely, 2^1140040432 is an apocalyptic number.

It is an amenable number.

1140040432 is an abundant number, since it is smaller than the sum of its proper divisors (1187952928).

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

1140040432 is a wasteful number, since it uses less digits than its factorization.

1140040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1140040432 is about 33764.4847732051. The cubic root of 1140040432 is about 1044.6562766890.

Adding to 1140040432 its reverse (2340400411), we get a palindrome (3480440843).

The spelling of 1140040432 in words is "one billion, one hundred forty million, forty thousand, four hundred thirty-two".