400052403 has 12 divisors (see below), whose sum is σ = 578736288. Its totient is φ = 266294160.

The previous prime is 400052371. The next prime is 400052417. The reversal of 400052403 is 304250004.

It is a happy number.

It is not a de Polignac number, because 400052403 - 2⁵ = 400052371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400052423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27675 + ... + 39572.

It is an arithmetic number, because the mean of its divisors is an integer number (48228024).

Almost surely, 2^400052403 is an apocalyptic number.

400052403 is a deficient number, since it is larger than the sum of its proper divisors (178683885).

400052403 is a wasteful number, since it uses less digits than its factorization.

400052403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67914 (or 67911 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 400052403 is about 20001.3100320954. The cubic root of 400052403 is about 736.8384740402.

The spelling of 400052403 in words is "four hundred million, fifty-two thousand, four hundred three".