1021240432 has 40 divisors (see below), whose sum is σ = 1993622400. Its totient is φ = 506776512.

The previous prime is 1021240417. The next prime is 1021240463. The reversal of 1021240432 is 2340421201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326069 + ... + 2326507.

It is an arithmetic number, because the mean of its divisors is an integer number (49840560).

Almost surely, 2^1021240432 is an apocalyptic number.

It is an amenable number.

1021240432 is a deficient number, since it is larger than the sum of its proper divisors (972381968).

1021240432 is a wasteful number, since it uses less digits than its factorization.

1021240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1207 counting only the distinct ones).

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

The square root of 1021240432 is about 31956.8526610491. The cubic root of 1021240432 is about 1007.0305988407.

Adding to 1021240432 its reverse (2340421201), we get a palindrome (3361661633).

The spelling of 1021240432 in words is "one billion, twenty-one million, two hundred forty thousand, four hundred thirty-two".