42851740 has 12 divisors (see below), whose sum is σ = 89988696. Its totient is φ = 17140688.

The previous prime is 42851723. The next prime is 42851771. The reversal of 42851740 is 4715824.

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, 1071274 + ... + 1071313.

It is an arithmetic number, because the mean of its divisors is an integer number (7499058).

Almost surely, 2^42851740 is an apocalyptic number.

It is an amenable number.

42851740 is an abundant number, since it is smaller than the sum of its proper divisors (47136956).

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

42851740 is a wasteful number, since it uses less digits than its factorization.

42851740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142596 (or 2142594 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42851740 is about 6546.1240440432. The cubic root of 42851740 is about 349.9366960340.

The spelling of 42851740 in words is "forty-two million, eight hundred fifty-one thousand, seven hundred forty".