40269281 has 8 divisors (see below), whose sum is σ = 43425984. Its totient is φ = 37121040.

The previous prime is 40269263. The next prime is 40269289. The reversal of 40269281 is 18296204.

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

It is a cyclic number.

It is not a de Polignac number, because 40269281 - 2¹⁴ = 40252897 is a prime.

It is a super-2 number, since 2×40269281² = 3243229984513922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40269289) 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, 10676 + ... + 13946.

It is an arithmetic number, because the mean of its divisors is an integer number (5428248).

Almost surely, 2^40269281 is an apocalyptic number.

It is an amenable number.

40269281 is a deficient number, since it is larger than the sum of its proper divisors (3156703).

40269281 is a wasteful number, since it uses less digits than its factorization.

40269281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 40269281 is about 6345.8081439640. The cubic root of 40269281 is about 342.7609136604.

The spelling of 40269281 in words is "forty million, two hundred sixty-nine thousand, two hundred eighty-one".