40304242 has 8 divisors (see below), whose sum is σ = 65952432. Its totient is φ = 18320100.

The previous prime is 40304237. The next prime is 40304261. The reversal of 40304242 is 24240304.

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

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, 915984 + ... + 916027.

It is an arithmetic number, because the mean of its divisors is an integer number (8244054).

Almost surely, 2^40304242 is an apocalyptic number.

40304242 is a deficient number, since it is larger than the sum of its proper divisors (25648190).

40304242 is a wasteful number, since it uses less digits than its factorization.

40304242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832024.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40304242 is about 6348.5621994275. The cubic root of 40304242 is about 342.8600777361.

Adding to 40304242 its reverse (24240304), we get a palindrome (64544546).

The spelling of 40304242 in words is "forty million, three hundred four thousand, two hundred forty-two".