40342245 has 8 divisors (see below), whose sum is σ = 64547616. Its totient is φ = 21515856.

The previous prime is 40342231. The next prime is 40342259. The reversal of 40342245 is 54224304.

It is an interprime number because it is at equal distance from previous prime (40342231) and next prime (40342259).

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

It is not a de Polignac number, because 40342245 - 2⁴ = 40342229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344727 + ... + 1344756.

It is an arithmetic number, because the mean of its divisors is an integer number (8068452).

Almost surely, 2^40342245 is an apocalyptic number.

It is an amenable number.

40342245 is a deficient number, since it is larger than the sum of its proper divisors (24205371).

40342245 is a wasteful number, since it uses less digits than its factorization.

40342245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689491.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40342245 is about 6351.5545341278. The cubic root of 40342245 is about 342.9678051760.

Adding to 40342245 its reverse (54224304), we get a palindrome (94566549).

The spelling of 40342245 in words is "forty million, three hundred forty-two thousand, two hundred forty-five".