400496 has 10 divisors (see below), whose sum is σ = 775992. Its totient is φ = 200240.

The previous prime is 400481. The next prime is 400523. The reversal of 400496 is 694004.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

400496 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 as a sum of consecutive naturals, namely, 12500 + ... + 12531.

2⁴⁰⁰⁴⁹⁶ is an apocalyptic number.

It is an amenable number.

400496 is a deficient number, since it is larger than the sum of its proper divisors (375496).

400496 is a wasteful number, since it uses less digits than its factorization.

400496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25039 (or 25033 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 400496 is about 632.8475329809. The cubic root of 400496 is about 73.7110720539.

The spelling of 400496 in words is "four hundred thousand, four hundred ninety-six".