80925240 has 128 divisors (see below), whose sum is σ = 267909120. Its totient is φ = 19392000.

The previous prime is 80925239. The next prime is 80925263. The reversal of 80925240 is 4252908.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 80925198 and 80925207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133017 + ... + 133623.

It is an arithmetic number, because the mean of its divisors is an integer number (2093040).

Almost surely, 2^80925240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80925240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133954560).

80925240 is an abundant number, since it is smaller than the sum of its proper divisors (186983880).

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

80925240 is a wasteful number, since it uses less digits than its factorization.

80925240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 80925240 is about 8995.8457078809. The cubic root of 80925240 is about 432.5417158243.

The spelling of 80925240 in words is "eighty million, nine hundred twenty-five thousand, two hundred forty".