400532 has 12 divisors (see below), whose sum is σ = 764736. Its totient is φ = 182040.

The previous prime is 400523. The next prime is 400559. The reversal of 400532 is 235004.

400532 = 19² + 20² + ... + 106².

400532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

400532 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (63728).

2⁴⁰⁰⁵³² is an apocalyptic number.

It is an amenable number.

400532 is a deficient number, since it is larger than the sum of its proper divisors (364204).

400532 is a wasteful number, since it uses less digits than its factorization.

400532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 400532 is about 632.8759752116. The cubic root of 400532 is about 73.7132805813.

Adding to 400532 its reverse (235004), we get a palindrome (635536).

The spelling of 400532 in words is "four hundred thousand, five hundred thirty-two".