40402241 has 16 divisors (see below), whose sum is σ = 45418560. Its totient is φ = 35622720.

The previous prime is 40402177. The next prime is 40402253. The reversal of 40402241 is 14220404.

It is a cyclic number.

It is not a de Polignac number, because 40402241 - 2⁶ = 40402177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40402291) 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, 108131 + ... + 108503.

It is an arithmetic number, because the mean of its divisors is an integer number (2838660).

Almost surely, 2^40402241 is an apocalyptic number.

It is an amenable number.

40402241 is a deficient number, since it is larger than the sum of its proper divisors (5016319).

40402241 is a wasteful number, since it uses less digits than its factorization.

40402241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40402241 is about 6356.2757177454. The cubic root of 40402241 is about 343.1377387405.

Adding to 40402241 its reverse (14220404), we get a palindrome (54622645).

The spelling of 40402241 in words is "forty million, four hundred two thousand, two hundred forty-one".