400598 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 179400.

The previous prime is 400597. The next prime is 400601. The reversal of 400598 is 895004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2813 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴⁰⁰⁵⁹⁸ is an apocalyptic number.

400598 is a deficient number, since it is larger than the sum of its proper divisors (264682).

400598 is a wasteful number, since it uses less digits than its factorization.

400598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 400598 is about 632.9281159816. The cubic root of 400598 is about 73.7173292044.

The spelling of 400598 in words is "four hundred thousand, five hundred ninety-eight".