80170420 has 24 divisors (see below), whose sum is σ = 183663648. Its totient is φ = 29152800.

The previous prime is 80170373. The next prime is 80170421. The reversal of 80170420 is 2407108.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 80170391 and 80170400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80170421) 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, 181986 + ... + 182425.

It is an arithmetic number, because the mean of its divisors is an integer number (7652652).

Almost surely, 2^80170420 is an apocalyptic number.

It is an amenable number.

80170420 is an abundant number, since it is smaller than the sum of its proper divisors (103493228).

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

80170420 is a wasteful number, since it uses less digits than its factorization.

80170420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364431 (or 364429 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 80170420 is about 8953.7936094150. The cubic root of 80170420 is about 431.1926866353.

Adding to 80170420 its reverse (2407108), we get a palindrome (82577528).

The spelling of 80170420 in words is "eighty million, one hundred seventy thousand, four hundred twenty".