405325632 has 56 divisors (see below), whose sum is σ = 1128877600. Its totient is φ = 127996416.

The previous prime is 405325607. The next prime is 405325643. The reversal of 405325632 is 236523504.

It is a self number, because there is not a number n which added to its sum of digits gives 405325632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51907 + ... + 59202.

Almost surely, 2^405325632 is an apocalyptic number.

It is an amenable number.

405325632 is an abundant number, since it is smaller than the sum of its proper divisors (723551968).

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

405325632 is a wasteful number, since it uses less digits than its factorization.

405325632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111143 (or 111133 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 405325632 is about 20132.7005640078. The cubic root of 405325632 is about 740.0618599371.

It can be divided in two parts, 40532 and 5632, that added together give a palindrome (46164).

The spelling of 405325632 in words is "four hundred five million, three hundred twenty-five thousand, six hundred thirty-two".