400363263 has 16 divisors (see below), whose sum is σ = 594248800. Its totient is φ = 266405760.

The previous prime is 400363261. The next prime is 400363267. The reversal of 400363263 is 362363004.

400363263 is a `hidden beast` number, since 40 + 0 + 363 + 263 = 666.

It is not a de Polignac number, because 400363263 - 2¹ = 400363261 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400363261) 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, 903 + ... + 28311.

It is an arithmetic number, because the mean of its divisors is an integer number (37140550).

Almost surely, 2^400363263 is an apocalyptic number.

400363263 is a deficient number, since it is larger than the sum of its proper divisors (193885537).

400363263 is a wasteful number, since it uses less digits than its factorization.

400363263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27959 (or 27953 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 400363263 is about 20009.0795140606. The cubic root of 400363263 is about 737.0292776311.

The spelling of 400363263 in words is "four hundred million, three hundred sixty-three thousand, two hundred sixty-three".