400054751 has 8 divisors (see below), whose sum is σ = 407151360. Its totient is φ = 392968792.

The previous prime is 400054717. The next prime is 400054769. The reversal of 400054751 is 157450004.

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

It is not a de Polignac number, because 400054751 - 2¹⁰ = 400053727 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 400054751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400054051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130826 + ... + 133848.

It is an arithmetic number, because the mean of its divisors is an integer number (50893920).

Almost surely, 2^400054751 is an apocalyptic number.

400054751 is a deficient number, since it is larger than the sum of its proper divisors (7096609).

400054751 is a wasteful number, since it uses less digits than its factorization.

400054751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 400054751 is about 20001.3687281646. The cubic root of 400054751 is about 736.8399155958.

The spelling of 400054751 in words is "four hundred million, fifty-four thousand, seven hundred fifty-one".