40344261 has 8 divisors (see below), whose sum is σ = 53839584. Its totient is φ = 26872560.

The previous prime is 40344257. The next prime is 40344263. The reversal of 40344261 is 16244304.

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

It is not a de Polignac number, because 40344261 - 2² = 40344257 is a prime.

It is a super-2 number, since 2×40344261² = 3255318791272242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435 + ... + 9096.

It is an arithmetic number, because the mean of its divisors is an integer number (6729948).

Almost surely, 2^40344261 is an apocalyptic number.

It is an amenable number.

40344261 is a deficient number, since it is larger than the sum of its proper divisors (13495323).

40344261 is a wasteful number, since it uses less digits than its factorization.

40344261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11811.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40344261 is about 6351.7132334513. The cubic root of 40344261 is about 342.9735180591.

Adding to 40344261 its reverse (16244304), we get a palindrome (56588565).

The spelling of 40344261 in words is "forty million, three hundred forty-four thousand, two hundred sixty-one".