1402232021 has 16 divisors (see below), whose sum is σ = 1517311488. Its totient is φ = 1293062400.

The previous prime is 1402232011. The next prime is 1402232059. The reversal of 1402232021 is 1202322041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402232021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402232011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41825 + ... + 67481.

It is an arithmetic number, because the mean of its divisors is an integer number (94831968).

Almost surely, 2^1402232021 is an apocalyptic number.

It is an amenable number.

1402232021 is a deficient number, since it is larger than the sum of its proper divisors (115079467).

1402232021 is a wasteful number, since it uses less digits than its factorization.

1402232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25772.

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

The square root of 1402232021 is about 37446.3886242719. The cubic root of 1402232021 is about 1119.2831352788.

Adding to 1402232021 its reverse (1202322041), we get a palindrome (2604554062).

The spelling of 1402232021 in words is "one billion, four hundred two million, two hundred thirty-two thousand, twenty-one".