42440620 has 12 divisors (see below), whose sum is σ = 89125344. Its totient is φ = 16976240.

The previous prime is 42440611. The next prime is 42440627. The reversal of 42440620 is 2604424.

It is a junction number, because it is equal to n+sod(n) for n = 42440591 and 42440600.

It is not an unprimeable number, because it can be changed into a prime (42440627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060996 + ... + 1061035.

It is an arithmetic number, because the mean of its divisors is an integer number (7427112).

Almost surely, 2^42440620 is an apocalyptic number.

It is an amenable number.

42440620 is an abundant number, since it is smaller than the sum of its proper divisors (46684724).

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

42440620 is a wasteful number, since it uses less digits than its factorization.

42440620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122040 (or 2122038 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 42440620 is about 6514.6465752180. The cubic root of 42440620 is about 348.8139992943.

The spelling of 42440620 in words is "forty-two million, four hundred forty thousand, six hundred twenty".