400778483 has 8 divisors (see below), whose sum is σ = 458451552. Its totient is φ = 343210176.

The previous prime is 400778467. The next prime is 400778501. The reversal of 400778483 is 384877004.

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 400778483 - 2⁴ = 400778467 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 400778483.

It is not an unprimeable number, because it can be changed into a prime (400778423) 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, 17810 + ... + 33447.

It is an arithmetic number, because the mean of its divisors is an integer number (57306444).

Almost surely, 2^400778483 is an apocalyptic number.

400778483 is a deficient number, since it is larger than the sum of its proper divisors (57673069).

400778483 is a wasteful number, since it uses less digits than its factorization.

400778483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52381.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 400778483 is about 20019.4526148943. The cubic root of 400778483 is about 737.2839826208.

The spelling of 400778483 in words is "four hundred million, seven hundred seventy-eight thousand, four hundred eighty-three".