42465140 has 12 divisors (see below), whose sum is σ = 89176836. Its totient is φ = 16986048.

The previous prime is 42465139. The next prime is 42465151. The reversal of 42465140 is 4156424.

It can be written as a sum of positive squares in 2 ways, for example, as 25786084 + 16679056 = 5078^2 + 4084^2 .

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, 1061609 + ... + 1061648.

It is an arithmetic number, because the mean of its divisors is an integer number (7431403).

Almost surely, 2^42465140 is an apocalyptic number.

It is an amenable number.

42465140 is an abundant number, since it is smaller than the sum of its proper divisors (46711696).

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

42465140 is a wasteful number, since it uses less digits than its factorization.

42465140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123266 (or 2123264 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 42465140 is about 6516.5282167731. The cubic root of 42465140 is about 348.8811619375.

The spelling of 42465140 in words is "forty-two million, four hundred sixty-five thousand, one hundred forty".