42129292 has 12 divisors (see below), whose sum is σ = 73772496. Its totient is φ = 21051440.

The previous prime is 42129287. The next prime is 42129301. The reversal of 42129292 is 29292124.

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, 8817 + ... + 12727.

It is an arithmetic number, because the mean of its divisors is an integer number (6147708).

Almost surely, 2^42129292 is an apocalyptic number.

It is an amenable number.

42129292 is a deficient number, since it is larger than the sum of its proper divisors (31643204).

42129292 is a wasteful number, since it uses less digits than its factorization.

42129292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608 (or 6606 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 42129292 is about 6490.7081277777. The cubic root of 42129292 is about 347.9589835835.

The spelling of 42129292 in words is "forty-two million, one hundred twenty-nine thousand, two hundred ninety-two".