40084427 has 4 divisors (see below), whose sum is σ = 40353600. Its totient is φ = 39815256.

The previous prime is 40084391. The next prime is 40084439. The reversal of 40084427 is 72448004.

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

It is a cyclic number.

It is not a de Polignac number, because 40084427 - 2²² = 35890123 is a prime.

It is a super-2 number, since 2×40084427² = 3213522575836658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40084427.

It is not an unprimeable number, because it can be changed into a prime (40084477) 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, 134363 + ... + 134660.

It is an arithmetic number, because the mean of its divisors is an integer number (10088400).

Almost surely, 2^40084427 is an apocalyptic number.

40084427 is a deficient number, since it is larger than the sum of its proper divisors (269173).

40084427 is a wasteful number, since it uses less digits than its factorization.

40084427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269172.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 40084427 is about 6331.2263425027. The cubic root of 40084427 is about 342.2356338133.

The spelling of 40084427 in words is "forty million, eighty-four thousand, four hundred twenty-seven".