40942427 has 4 divisors (see below), whose sum is σ = 41553576. Its totient is φ = 40331280.

The previous prime is 40942423. The next prime is 40942453. The reversal of 40942427 is 72424904.

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 40942427 - 2² = 40942423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40942393 and 40942402.

It is not an unprimeable number, because it can be changed into a prime (40942423) 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, 305474 + ... + 305607.

It is an arithmetic number, because the mean of its divisors is an integer number (10388394).

Almost surely, 2^40942427 is an apocalyptic number.

40942427 is a deficient number, since it is larger than the sum of its proper divisors (611149).

40942427 is an equidigital number, since it uses as much as digits as its factorization.

40942427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611148.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40942427 is about 6398.6269620912. The cubic root of 40942427 is about 344.6602466337.

The spelling of 40942427 in words is "forty million, nine hundred forty-two thousand, four hundred twenty-seven".