80469720 has 64 divisors (see below), whose sum is σ = 268236000. Its totient is φ = 21458304.

The previous prime is 80469713. The next prime is 80469733. The reversal of 80469720 is 2796408.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36175 + ... + 38334.

Almost surely, 2^80469720 is an apocalyptic number.

It is an amenable number.

80469720 is an abundant number, since it is smaller than the sum of its proper divisors (187766280).

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

80469720 is a wasteful number, since it uses less digits than its factorization.

80469720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74529 (or 74519 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 80469720 is about 8970.4916253236. The cubic root of 80469720 is about 431.7286104084.

It can be divided in two parts, 8046 and 9720, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 80469720 in words is "eighty million, four hundred sixty-nine thousand, seven hundred twenty".