400440483 has 16 divisors (see below), whose sum is σ = 594055200. Its totient is φ = 266595840.

The previous prime is 400440479. The next prime is 400440499. The reversal of 400440483 is 384044004.

It is not a de Polignac number, because 400440483 - 2² = 400440479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (400440583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10803 + ... + 30291.

It is an arithmetic number, because the mean of its divisors is an integer number (37128450).

Almost surely, 2^400440483 is an apocalyptic number.

400440483 is a deficient number, since it is larger than the sum of its proper divisors (193614717).

400440483 is a wasteful number, since it uses less digits than its factorization.

400440483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20259 (or 20253 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 400440483 is about 20011.0090450232. The cubic root of 400440483 is about 737.0766593861.

Adding to 400440483 its reverse (384044004), we get a palindrome (784484487).

The spelling of 400440483 in words is "four hundred million, four hundred forty thousand, four hundred eighty-three".