20270080 has 88 divisors (see below), whose sum is σ = 50405328. Its totient is φ = 7815168.

The previous prime is 20270077. The next prime is 20270083. The reversal of 20270080 is 8007202.

It is an interprime number because it is at equal distance from previous prime (20270077) and next prime (20270083).

It is a super-2 number, since 2×20270080² = 821752286412800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20270083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189387 + ... + 189493.

Almost surely, 2^20270080 is an apocalyptic number.

20270080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20270080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25202664).

20270080 is an abundant number, since it is smaller than the sum of its proper divisors (30135248).

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

20270080 is a wasteful number, since it uses less digits than its factorization.

20270080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20270080 is about 4502.2305582900. The cubic root of 20270080 is about 272.6581524499.

Adding to 20270080 its reverse (8007202), we get a palindrome (28277282).

The spelling of 20270080 in words is "twenty million, two hundred seventy thousand, eighty".