4222632720 has 80 divisors (see below), whose sum is σ = 13860184320. Its totient is φ = 1059796992.

The previous prime is 4222632709. The next prime is 4222632727. The reversal of 4222632720 is 272362224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (4222632727) 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, 513400 + ... + 521559.

It is an arithmetic number, because the mean of its divisors is an integer number (173252304).

Almost surely, 2^4222632720 is an apocalyptic number.

4222632720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4222632720 is an abundant number, since it is smaller than the sum of its proper divisors (9637551600).

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

4222632720 is a wasteful number, since it uses less digits than its factorization.

4222632720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034992 (or 1034986 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 4222632720 is about 64981.7876023736. The cubic root of 4222632720 is about 1616.3215731809.

Adding to 4222632720 its reverse (272362224), we get a palindrome (4494994944).

The spelling of 4222632720 in words is "four billion, two hundred twenty-two million, six hundred thirty-two thousand, seven hundred twenty".