42691122 has 12 divisors (see below), whose sum is σ = 92497470. Its totient is φ = 14230368.

The previous prime is 42691091. The next prime is 42691139. The reversal of 42691122 is 22119624.

It can be written as a sum of positive squares in only one way, i.e., 26842761 + 15848361 = 5181^2 + 3981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1185847 + ... + 1185882.

Almost surely, 2^42691122 is an apocalyptic number.

42691122 is an abundant number, since it is smaller than the sum of its proper divisors (49806348).

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

42691122 is a wasteful number, since it uses less digits than its factorization.

42691122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371737 (or 2371734 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 42691122 is about 6533.8443507632. The cubic root of 42691122 is about 349.4989347104.

The spelling of 42691122 in words is "forty-two million, six hundred ninety-one thousand, one hundred twenty-two".