40142027 has 4 divisors (see below), whose sum is σ = 40268976. Its totient is φ = 40015080.

The previous prime is 40142023. The next prime is 40142029. The reversal of 40142027 is 72024104.

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 40142027 - 2² = 40142023 is a prime.

It is a super-2 number, since 2×40142027² = 3222764663337458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40142021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62999 + ... + 63632.

It is an arithmetic number, because the mean of its divisors is an integer number (10067244).

Almost surely, 2^40142027 is an apocalyptic number.

40142027 is a deficient number, since it is larger than the sum of its proper divisors (126949).

40142027 is a wasteful number, since it uses less digits than its factorization.

40142027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126948.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 40142027 is about 6335.7735912831. The cubic root of 40142027 is about 342.3994824640.

The spelling of 40142027 in words is "forty million, one hundred forty-two thousand, twenty-seven".