40027942 has 4 divisors (see below), whose sum is σ = 60041916. Its totient is φ = 20013970.

The previous prime is 40027921. The next prime is 40027943. The reversal of 40027942 is 24972004.

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

It is a super-2 number, since 2×40027942² = 3204472281510728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40027942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40027943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006984 + ... + 10006987.

It is an arithmetic number, because the mean of its divisors is an integer number (15010479).

Almost surely, 2^40027942 is an apocalyptic number.

40027942 is a deficient number, since it is larger than the sum of its proper divisors (20013974).

40027942 is a wasteful number, since it uses less digits than its factorization.

40027942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20013973.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40027942 is about 6326.7639437551. The cubic root of 40027942 is about 342.0748043797.

Adding to 40027942 its reverse (24972004), we get a palindrome (64999946).

The spelling of 40027942 in words is "forty million, twenty-seven thousand, nine hundred forty-two".