42969188 has 12 divisors (see below), whose sum is σ = 75372780. Its totient is φ = 21434112.

The previous prime is 42969133. The next prime is 42969191. The reversal of 42969188 is 88196924.

It can be written as a sum of positive squares in 2 ways, for example, as 21141604 + 21827584 = 4598^2 + 4672^2 .

It is a super-2 number, since 2×42969188² = 3692702234758688, which contains 22 as substring.

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, 10673 + ... + 14136.

It is an arithmetic number, because the mean of its divisors is an integer number (6281065).

Almost surely, 2^42969188 is an apocalyptic number.

It is an amenable number.

42969188 is a deficient number, since it is larger than the sum of its proper divisors (32403592).

42969188 is a wasteful number, since it uses less digits than its factorization.

42969188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25246 (or 25244 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 42969188 is about 6555.0887103074. The cubic root of 42969188 is about 350.2561064304.

The spelling of 42969188 in words is "forty-two million, nine hundred sixty-nine thousand, one hundred eighty-eight".