400054534 has 8 divisors (see below), whose sum is σ = 654634728. Its totient is φ = 181842960.

The previous prime is 400054513. The next prime is 400054537. The reversal of 400054534 is 435450004.

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

It is a junction number, because it is equal to n+sod(n) for n = 400054499 and 400054508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400054537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9092127 + ... + 9092170.

It is an arithmetic number, because the mean of its divisors is an integer number (81829341).

Almost surely, 2^400054534 is an apocalyptic number.

400054534 is a deficient number, since it is larger than the sum of its proper divisors (254580194).

400054534 is a wasteful number, since it uses less digits than its factorization.

400054534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18184310.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 400054534 is about 20001.3633035351. The cubic root of 400054534 is about 736.8397823688.

The spelling of 400054534 in words is "four hundred million, fifty-four thousand, five hundred thirty-four".