40662427 has 4 divisors (see below), whose sum is σ = 43790320. Its totient is φ = 37534536.

The previous prime is 40662407. The next prime is 40662449. The reversal of 40662427 is 72426604.

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

It is a de Polignac number, because none of the positive numbers 2^k-40662427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40662407) 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, 1563927 + ... + 1563952.

It is an arithmetic number, because the mean of its divisors is an integer number (10947580).

Almost surely, 2^40662427 is an apocalyptic number.

40662427 is a deficient number, since it is larger than the sum of its proper divisors (3127893).

40662427 is a wasteful number, since it uses less digits than its factorization.

40662427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127892.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 40662427 is about 6376.7097315151. The cubic root of 40662427 is about 343.8727529862.

The spelling of 40662427 in words is "forty million, six hundred sixty-two thousand, four hundred twenty-seven".