42131466 has 48 divisors (see below), whose sum is σ = 98771400. Its totient is φ = 12902400.

The previous prime is 42131431. The next prime is 42131483. The reversal of 42131466 is 66413124.

It can be written as a sum of positive squares in 4 ways, for example, as 40640625 + 1490841 = 6375^2 + 1221^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93610 + ... + 94058.

Almost surely, 2^42131466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42131466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49385700).

42131466 is an abundant number, since it is smaller than the sum of its proper divisors (56639934).

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

42131466 is a wasteful number, since it uses less digits than its factorization.

42131466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 868 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 42131466 is about 6490.8755957883. The cubic root of 42131466 is about 347.9649687290.

The spelling of 42131466 in words is "forty-two million, one hundred thirty-one thousand, four hundred sixty-six".