80698140 has 48 divisors (see below), whose sum is σ = 251062560. Its totient is φ = 21519360.

The previous prime is 80698139. The next prime is 80698151. The reversal of 80698140 is 4189608.

It is a happy number.

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 = 80698095 and 80698104.

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, 74181 + ... + 75260.

It is an arithmetic number, because the mean of its divisors is an integer number (5230470).

Almost surely, 2^80698140 is an apocalyptic number.

It is an amenable number.

80698140 is an abundant number, since it is smaller than the sum of its proper divisors (170364420).

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

80698140 is a wasteful number, since it uses less digits than its factorization.

80698140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149459 (or 149451 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 80698140 is about 8983.2143467692. The cubic root of 80698140 is about 432.1367236991.

The spelling of 80698140 in words is "eighty million, six hundred ninety-eight thousand, one hundred forty".