40242442 has 8 divisors (see below), whose sum is σ = 61128000. Its totient is φ = 19866444.

The previous prime is 40242427. The next prime is 40242457. The reversal of 40242442 is 24424204.

It is an interprime number because it is at equal distance from previous prime (40242427) and next prime (40242457).

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, 127192 + ... + 127507.

It is an arithmetic number, because the mean of its divisors is an integer number (7641000).

Almost surely, 2^40242442 is an apocalyptic number.

40242442 is a deficient number, since it is larger than the sum of its proper divisors (20885558).

40242442 is a wasteful number, since it uses less digits than its factorization.

40242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254780.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 40242442 is about 6343.6930884147. The cubic root of 40242442 is about 342.6847480370.

Adding to 40242442 its reverse (24424204), we get a palindrome (64666646).

The spelling of 40242442 in words is "forty million, two hundred forty-two thousand, four hundred forty-two".