39845542 has 24 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 18007440.

The previous prime is 39845539. The next prime is 39845549. The reversal of 39845542 is 24554893.

It is a junction number, because it is equal to n+sod(n) for n = 39845495 and 39845504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39845549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55059 + ... + 55777.

It is an arithmetic number, because the mean of its divisors is an integer number (2753100).

Almost surely, 2^39845542 is an apocalyptic number.

39845542 is a deficient number, since it is larger than the sum of its proper divisors (26228858).

39845542 is a wasteful number, since it uses less digits than its factorization.

39845542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 961 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 39845542 is about 6312.3325324320. The cubic root of 39845542 is about 341.5544224065.

The spelling of 39845542 in words is "thirty-nine million, eight hundred forty-five thousand, five hundred forty-two".