2130021432 has 96 divisors (see below), whose sum is σ = 7192298880. Its totient is φ = 553250880.

The previous prime is 2130021407. The next prime is 2130021437. The reversal of 2130021432 is 2341200312.

2130021432 is a `hidden beast` number, since 213 + 0 + 0 + 21 + 432 = 666.

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 (2130021437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186558 + ... + 197645.

It is an arithmetic number, because the mean of its divisors is an integer number (74919780).

Almost surely, 2^2130021432 is an apocalyptic number.

2130021432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2130021432 is an abundant number, since it is smaller than the sum of its proper divisors (5062277448).

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

2130021432 is a wasteful number, since it uses less digits than its factorization.

2130021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384233 (or 384226 counting only the distinct ones).

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

The square root of 2130021432 is about 46152.1552259480. The cubic root of 2130021432 is about 1286.6526666158.

Adding to 2130021432 its reverse (2341200312), we get a palindrome (4471221744).

The spelling of 2130021432 in words is "two billion, one hundred thirty million, twenty-one thousand, four hundred thirty-two".