42909052 has 12 divisors (see below), whose sum is σ = 75229560. Its totient is φ = 21414896.

The previous prime is 42909043. The next prime is 42909089. The reversal of 42909052 is 25090924.

It is a congruent number.

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, 7402 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (6269130).

Almost surely, 2^42909052 is an apocalyptic number.

It is an amenable number.

42909052 is a deficient number, since it is larger than the sum of its proper divisors (32320508).

42909052 is a wasteful number, since it uses less digits than its factorization.

42909052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19820 (or 19818 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 42909052 is about 6550.5001335776. The cubic root of 42909052 is about 350.0926339839.

Adding to 42909052 its reverse (25090924), we get a palindrome (67999976).

The spelling of 42909052 in words is "forty-two million, nine hundred nine thousand, fifty-two".