42406620 has 48 divisors (see below), whose sum is σ = 119024640. Its totient is φ = 11281216.

The previous prime is 42406597. The next prime is 42406621. The reversal of 42406620 is 2660424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42406621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42649 + ... + 43631.

It is an arithmetic number, because the mean of its divisors is an integer number (2479680).

Almost surely, 2^42406620 is an apocalyptic number.

It is an amenable number.

42406620 is an abundant number, since it is smaller than the sum of its proper divisors (76618020).

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

42406620 is a wasteful number, since it uses less digits than its factorization.

42406620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 42406620 is about 6512.0365478090. The cubic root of 42406620 is about 348.7208271997.

The spelling of 42406620 in words is "forty-two million, four hundred six thousand, six hundred twenty".