40451842 has 8 divisors (see below), whose sum is σ = 60705936. Its totient is φ = 20216532.

The previous prime is 40451837. The next prime is 40451849. The reversal of 40451842 is 24815404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40451842.

It is not an unprimeable number, because it can be changed into a prime (40451849) 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, 3673 + ... + 9715.

It is an arithmetic number, because the mean of its divisors is an integer number (7588242).

Almost surely, 2^40451842 is an apocalyptic number.

40451842 is a deficient number, since it is larger than the sum of its proper divisors (20254094).

40451842 is a wasteful number, since it uses less digits than its factorization.

40451842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 40451842 is about 6360.1762554193. The cubic root of 40451842 is about 343.2781023629.

The spelling of 40451842 in words is "forty million, four hundred fifty-one thousand, eight hundred forty-two".