40550442 has 8 divisors (see below), whose sum is σ = 81100896. Its totient is φ = 13516812.

The previous prime is 40550441. The next prime is 40550453. The reversal of 40550442 is 24405504.

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

40550442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40550441) 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, 3379198 + ... + 3379209.

It is an arithmetic number, because the mean of its divisors is an integer number (10137612).

Almost surely, 2^40550442 is an apocalyptic number.

40550442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40550442 is a wasteful number, since it uses less digits than its factorization.

40550442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758412.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40550442 is about 6367.9228952618. The cubic root of 40550442 is about 343.5567856557.

Adding to 40550442 its reverse (24405504), we get a palindrome (64955946).

The spelling of 40550442 in words is "forty million, five hundred fifty thousand, four hundred forty-two".