1421021432 has 16 divisors (see below), whose sum is σ = 2821145760. Its totient is φ = 668715904.

The previous prime is 1421021417. The next prime is 1421021471. The reversal of 1421021432 is 2341201241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5224208 + ... + 5224479.

It is an arithmetic number, because the mean of its divisors is an integer number (176321610).

Almost surely, 2^1421021432 is an apocalyptic number.

It is an amenable number.

1421021432 is a deficient number, since it is larger than the sum of its proper divisors (1400124328).

1421021432 is a wasteful number, since it uses less digits than its factorization.

1421021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448710 (or 10448706 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1421021432 is about 37696.4379219045. The cubic root of 1421021432 is about 1124.2603024237.

Adding to 1421021432 its reverse (2341201241), we get a palindrome (3762222673).

The spelling of 1421021432 in words is "one billion, four hundred twenty-one million, twenty-one thousand, four hundred thirty-two".