40000054 has 16 divisors (see below), whose sum is σ = 64352880. Its totient is φ = 18588960.

The previous prime is 40000033. The next prime is 40000061. The reversal of 40000054 is 45000004.

40000054 is a modest number, since divided by 54 gives 40 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 39999989 and 40000043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7917 + ... + 11944.

It is an arithmetic number, because the mean of its divisors is an integer number (4022055).

Almost surely, 2^40000054 is an apocalyptic number.

40000054 is a deficient number, since it is larger than the sum of its proper divisors (24352826).

40000054 is a wasteful number, since it uses less digits than its factorization.

40000054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19935.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 40000054 is about 6324.5595894102. The cubic root of 40000054 is about 341.9953432331.

Adding to 40000054 its reverse (45000004), we get a palindrome (85000058).

The spelling of 40000054 in words is "forty million, fifty-four", and thus it is an aban number and an eban number.