1402021332 has 24 divisors (see below), whose sum is σ = 3634870400. Its totient is φ = 467340408.

The previous prime is 1402021301. The next prime is 1402021339. The reversal of 1402021332 is 2331202041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402021339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6490732 + ... + 6490947.

Almost surely, 2^1402021332 is an apocalyptic number.

1402021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1402021332 is an abundant number, since it is smaller than the sum of its proper divisors (2232849068).

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

1402021332 is a wasteful number, since it uses less digits than its factorization.

1402021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981692 (or 12981684 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1402021332 is about 37443.5753100582. The cubic root of 1402021332 is about 1119.2270740724.

Adding to 1402021332 its reverse (2331202041), we get a palindrome (3733223373).

The spelling of 1402021332 in words is "one billion, four hundred two million, twenty-one thousand, three hundred thirty-two".