42939526 has 16 divisors (see below), whose sum is σ = 75985920. Its totient is φ = 17808840.

The previous prime is 42939521. The next prime is 42939553. The reversal of 42939526 is 62593924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49036 + ... + 49903.

It is an arithmetic number, because the mean of its divisors is an integer number (4749120).

Almost surely, 2^42939526 is an apocalyptic number.

42939526 is a deficient number, since it is larger than the sum of its proper divisors (33046394).

42939526 is a wasteful number, since it uses less digits than its factorization.

42939526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98979.

The product of its digits is 116640, while the sum is 40.

The square root of 42939526 is about 6552.8258026595. The cubic root of 42939526 is about 350.1754929440.

The spelling of 42939526 in words is "forty-two million, nine hundred thirty-nine thousand, five hundred twenty-six".