400313233 has 8 divisors (see below), whose sum is σ = 406022400. Its totient is φ = 394625328.

The previous prime is 400313203. The next prime is 400313237. The reversal of 400313233 is 332313004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400313233 - 2²⁵ = 366758801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400313233.

It is not an unprimeable number, because it can be changed into a prime (400313237) 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, 34723 + ... + 44791.

It is an arithmetic number, because the mean of its divisors is an integer number (50752800).

Almost surely, 2^400313233 is an apocalyptic number.

It is an amenable number.

400313233 is a deficient number, since it is larger than the sum of its proper divisors (5709167).

400313233 is a wasteful number, since it uses less digits than its factorization.

400313233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 400313233 is about 20007.8292925545. The cubic root of 400313233 is about 736.9985762537.

Adding to 400313233 its reverse (332313004), we get a palindrome (732626237).

It can be divided in two parts, 40031 and 3233, that added together give a square (43264 = 208²).

The spelling of 400313233 in words is "four hundred million, three hundred thirteen thousand, two hundred thirty-three".