40009054 has 4 divisors (see below), whose sum is σ = 60013584. Its totient is φ = 20004526.

The previous prime is 40009051. The next prime is 40009087. The reversal of 40009054 is 45090004.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×40009054⁴ (a number of 32 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40009051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002262 + ... + 10002265.

It is an arithmetic number, because the mean of its divisors is an integer number (15003396).

Almost surely, 2^40009054 is an apocalyptic number.

40009054 is a deficient number, since it is larger than the sum of its proper divisors (20004530).

40009054 is a wasteful number, since it uses less digits than its factorization.

40009054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20004529.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40009054 is about 6325.2710613854. The cubic root of 40009054 is about 342.0209909257.

Adding to 40009054 its reverse (45090004), we get a palindrome (85099058).

The spelling of 40009054 in words is "forty million, nine thousand, fifty-four".