16400054 has 32 divisors (see below), whose sum is σ = 28062720. Its totient is φ = 7120800.

The previous prime is 16400047. The next prime is 16400093. The reversal of 16400054 is 45000461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16399999 and 16400035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94712 + ... + 94884.

It is an arithmetic number, because the mean of its divisors is an integer number (876960).

Almost surely, 2^16400054 is an apocalyptic number.

16400054 is a deficient number, since it is larger than the sum of its proper divisors (11662666).

16400054 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (16400053) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (356).

16400054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 16400054 is about 4049.6980134326. The cubic root of 16400054 is about 254.0670974080.

The spelling of 16400054 in words is "sixteen million, four hundred thousand, fifty-four".