2220397746 has 32 divisors (see below), whose sum is σ = 5077258368. Its totient is φ = 634141440.

The previous prime is 2220397709. The next prime is 2220397747. The reversal of 2220397746 is 6477930222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2220397698 and 2220397707.

It is not an unprimeable number, because it can be changed into a prime (2220397747) 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, 109656 + ... + 128316.

It is an arithmetic number, because the mean of its divisors is an integer number (158664324).

Almost surely, 2^2220397746 is an apocalyptic number.

2220397746 is an abundant number, since it is smaller than the sum of its proper divisors (2856860622).

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

2220397746 is a wasteful number, since it uses less digits than its factorization.

2220397746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21506.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 2220397746 is about 47121.0966128761. The cubic root of 2220397746 is about 1304.5986534627.

The spelling of 2220397746 in words is "two billion, two hundred twenty million, three hundred ninety-seven thousand, seven hundred forty-six".