1021270432 has 48 divisors (see below), whose sum is σ = 2474623872. Its totient is φ = 404017920.

The previous prime is 1021270423. The next prime is 1021270499. The reversal of 1021270432 is 2340721201.

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, 172444 + ... + 178267.

It is an arithmetic number, because the mean of its divisors is an integer number (51554664).

Almost surely, 2^1021270432 is an apocalyptic number.

It is an amenable number.

1021270432 is an abundant number, since it is smaller than the sum of its proper divisors (1453353440).

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

1021270432 is a wasteful number, since it uses less digits than its factorization.

1021270432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350741 (or 350733 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1021270432 is about 31957.3220404964. The cubic root of 1021270432 is about 1007.0404596013.

Adding to 1021270432 its reverse (2340721201), we get a palindrome (3361991633).

The spelling of 1021270432 in words is "one billion, twenty-one million, two hundred seventy thousand, four hundred thirty-two".