1040021432 has 32 divisors (see below), whose sum is σ = 2025248400. Its totient is φ = 500097024.

The previous prime is 1040021407. The next prime is 1040021441. The reversal of 1040021432 is 2341200401.

It is a self number, because there is not a number n which added to its sum of digits gives 1040021432.

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, 50903 + ... + 68345.

Almost surely, 2^1040021432 is an apocalyptic number.

It is an amenable number.

1040021432 is a deficient number, since it is larger than the sum of its proper divisors (985226968).

1040021432 is a wasteful number, since it uses less digits than its factorization.

1040021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735 (or 17731 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1040021432 is about 32249.3632805363. The cubic root of 1040021432 is about 1013.1663633981.

Adding to 1040021432 its reverse (2341200401), we get a palindrome (3381221833).

The spelling of 1040021432 in words is "one billion, forty million, twenty-one thousand, four hundred thirty-two".