42207770 has 32 divisors (see below), whose sum is σ = 87759936. Its totient is φ = 14444800.

The previous prime is 42207761. The next prime is 42207779. The reversal of 42207770 is 7770224.

It is an interprime number because it is at equal distance from previous prime (42207761) and next prime (42207779).

It is not an unprimeable number, because it can be changed into a prime (42207779) 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, 9416 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (2742498).

Almost surely, 2^42207770 is an apocalyptic number.

42207770 is an abundant number, since it is smaller than the sum of its proper divisors (45552166).

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

42207770 is a wasteful number, since it uses less digits than its factorization.

42207770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22606.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 42207770 is about 6496.7507263247. The cubic root of 42207770 is about 348.1749076713.

Adding to 42207770 its reverse (7770224), we get a palindrome (49977994).

The spelling of 42207770 in words is "forty-two million, two hundred seven thousand, seven hundred seventy".