39958542 has 32 divisors (see below), whose sum is σ = 95628960. Its totient is φ = 12294720.

The previous prime is 39958511. The next prime is 39958543. The reversal of 39958542 is 24585993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39958543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27759 + ... + 29162.

It is an arithmetic number, because the mean of its divisors is an integer number (2988405).

Almost surely, 2^39958542 is an apocalyptic number.

39958542 is an abundant number, since it is smaller than the sum of its proper divisors (55670418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39958542 is a wasteful number, since it uses less digits than its factorization.

39958542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56945 (or 56939 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 39958542 is about 6321.2769279632. The cubic root of 39958542 is about 341.8769948537.

The spelling of 39958542 in words is "thirty-nine million, nine hundred fifty-eight thousand, five hundred forty-two".