40023242 has 8 divisors (see below), whose sum is σ = 68611296. Its totient is φ = 17152812.

The previous prime is 40023229. The next prime is 40023311. The reversal of 40023242 is 24232004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40023242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429388 + ... + 1429415.

It is an arithmetic number, because the mean of its divisors is an integer number (8576412).

Almost surely, 2^40023242 is an apocalyptic number.

40023242 is a deficient number, since it is larger than the sum of its proper divisors (28588054).

40023242 is a wasteful number, since it uses less digits than its factorization.

40023242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858812.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40023242 is about 6326.3924949374. The cubic root of 40023242 is about 342.0614152784.

Adding to 40023242 its reverse (24232004), we get a palindrome (64255246).

The spelling of 40023242 in words is "forty million, twenty-three thousand, two hundred forty-two".