42841620 has 36 divisors (see below), whose sum is σ = 129953460. Its totient is φ = 11424384.

The previous prime is 42841619. The next prime is 42841633. The reversal of 42841620 is 2614824.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 32421636 = 3228^2 + 5694^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118825 + ... + 119184.

Almost surely, 2^42841620 is an apocalyptic number.

It is an amenable number.

42841620 is an abundant number, since it is smaller than the sum of its proper divisors (87111840).

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

42841620 is a wasteful number, since it uses less digits than its factorization.

42841620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238024 (or 238019 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42841620 is about 6545.3510219086. The cubic root of 42841620 is about 349.9091464862.

The spelling of 42841620 in words is "forty-two million, eight hundred forty-one thousand, six hundred twenty".