40918253 has 8 divisors (see below), whose sum is σ = 41545056. Its totient is φ = 40294800.

The previous prime is 40918237. The next prime is 40918261. The reversal of 40918253 is 35281904.

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 40918253 - 2⁴ = 40918237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40912253) 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, 34358 + ... + 35528.

It is an arithmetic number, because the mean of its divisors is an integer number (5193132).

Almost surely, 2^40918253 is an apocalyptic number.

It is an amenable number.

40918253 is a deficient number, since it is larger than the sum of its proper divisors (626803).

40918253 is a wasteful number, since it uses less digits than its factorization.

40918253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40918253 is about 6396.7376841637. The cubic root of 40918253 is about 344.5923996776.

The spelling of 40918253 in words is "forty million, nine hundred eighteen thousand, two hundred fifty-three".