432021540 has 48 divisors (see below), whose sum is σ = 1212361920. Its totient is φ = 114948480.

The previous prime is 432021523. The next prime is 432021587. The reversal of 432021540 is 45120234.

It is a super-2 number, since 2×432021540² = 373285222047943200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19851 + ... + 35469.

It is an arithmetic number, because the mean of its divisors is an integer number (25257540).

Almost surely, 2^432021540 is an apocalyptic number.

It is an amenable number.

432021540 is an abundant number, since it is smaller than the sum of its proper divisors (780340380).

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

432021540 is a wasteful number, since it uses less digits than its factorization.

432021540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16092 (or 16090 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 432021540 is about 20785.1278562341. The cubic root of 432021540 is about 755.9651939408.

Adding to 432021540 its reverse (45120234), we get a palindrome (477141774).

The spelling of 432021540 in words is "four hundred thirty-two million, twenty-one thousand, five hundred forty".