80220690 has 48 divisors (see below), whose sum is σ = 227537856. Its totient is φ = 19447200.

The previous prime is 80220689. The next prime is 80220691. The reversal of 80220690 is 9602208.

It is an interprime number because it is at equal distance from previous prime (80220689) and next prime (80220691).

It is a super-2 number, since 2×80220690² = 12870718208152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80220691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39526 + ... + 41505.

It is an arithmetic number, because the mean of its divisors is an integer number (4740372).

Almost surely, 2^80220690 is an apocalyptic number.

80220690 is an abundant number, since it is smaller than the sum of its proper divisors (147317166).

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

80220690 is a wasteful number, since it uses less digits than its factorization.

80220690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81055 (or 81052 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80220690 is about 8956.6003595114. The cubic root of 80220690 is about 431.2827927174.

Adding to 80220690 its reverse (9602208), we get a palindrome (89822898).

The spelling of 80220690 in words is "eighty million, two hundred twenty thousand, six hundred ninety".