80674740 has 36 divisors (see below), whose sum is σ = 244713924. Its totient is φ = 21513216.

The previous prime is 80674739. The next prime is 80674787. The reversal of 80674740 is 4747608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45319824 + 35354916 = 6732^2 + 5946^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 80674695 and 80674704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223917 + ... + 224276.

It is an arithmetic number, because the mean of its divisors is an integer number (6797609).

Almost surely, 2^80674740 is an apocalyptic number.

It is an amenable number.

80674740 is an abundant number, since it is smaller than the sum of its proper divisors (164039184).

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

80674740 is a wasteful number, since it uses less digits than its factorization.

80674740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448208 (or 448203 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 80674740 is about 8981.9118232145. The cubic root of 80674740 is about 432.0949508367.

The spelling of 80674740 in words is "eighty million, six hundred seventy-four thousand, seven hundred forty".