40442241 has 16 divisors (see below), whose sum is σ = 64870400. Its totient is φ = 21893328.

The previous prime is 40442209. The next prime is 40442243. The reversal of 40442241 is 14224404.

It is not a de Polignac number, because 40442241 - 2⁵ = 40442209 is a prime.

It is a super-3 number, since 3×40442241³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40442243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50281 + ... + 51078.

It is an arithmetic number, because the mean of its divisors is an integer number (4054400).

Almost surely, 2^40442241 is an apocalyptic number.

It is an amenable number.

40442241 is a deficient number, since it is larger than the sum of its proper divisors (24428159).

40442241 is a wasteful number, since it uses less digits than its factorization.

40442241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101388.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 40442241 is about 6359.4214359484. The cubic root of 40442241 is about 343.2509418870.

Adding to 40442241 its reverse (14224404), we get a palindrome (54666645).

The spelling of 40442241 in words is "forty million, four hundred forty-two thousand, two hundred forty-one".