40242842 has 8 divisors (see below), whose sum is σ = 63915156. Its totient is φ = 18937792.

The previous prime is 40242809. The next prime is 40242869. The reversal of 40242842 is 24824204.

It can be written as a sum of positive squares in 2 ways, for example, as 38800441 + 1442401 = 6229^2 + 1201^2 .

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, 591773 + ... + 591840.

Almost surely, 2^40242842 is an apocalyptic number.

40242842 is a deficient number, since it is larger than the sum of its proper divisors (23672314).

40242842 is a wasteful number, since it uses less digits than its factorization.

40242842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183632.

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 40242842 is about 6343.7246157128. The cubic root of 40242842 is about 342.6858834340.

The spelling of 40242842 in words is "forty million, two hundred forty-two thousand, eight hundred forty-two".