42407208 has 48 divisors (see below), whose sum is σ = 117030420. Its totient is φ = 13867776.

The previous prime is 42407201. The next prime is 42407227. The reversal of 42407208 is 80270424.

It can be written as a sum of positive squares in 2 ways, for example, as 39917124 + 2490084 = 6318^2 + 1578^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42407201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1741 + ... + 9372.

Almost surely, 2^42407208 is an apocalyptic number.

It is an amenable number.

42407208 is an abundant number, since it is smaller than the sum of its proper divisors (74623212).

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

42407208 is a wasteful number, since it uses less digits than its factorization.

42407208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178 (or 11171 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 42407208 is about 6512.0816948193. The cubic root of 42407208 is about 348.7224389520.

The spelling of 42407208 in words is "forty-two million, four hundred seven thousand, two hundred eight".