40000654 has 4 divisors (see below), whose sum is σ = 60000984. Its totient is φ = 20000326.

The previous prime is 40000651. The next prime is 40000669. The reversal of 40000654 is 45600004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000162 + ... + 10000165.

It is an arithmetic number, because the mean of its divisors is an integer number (15000246).

Almost surely, 2^40000654 is an apocalyptic number.

40000654 is a deficient number, since it is larger than the sum of its proper divisors (20000330).

40000654 is a wasteful number, since it uses less digits than its factorization.

40000654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000329.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40000654 is about 6324.6070233652. The cubic root of 40000654 is about 341.9970531990.

Adding to 40000654 its reverse (45600004), we get a palindrome (85600658).

The spelling of 40000654 in words is "forty million, six hundred fifty-four", and thus it is an aban number.