814066740 has 48 divisors (see below), whose sum is σ = 2532653760. Its totient is φ = 217084320.

The previous prime is 814066691. The next prime is 814066751. The reversal of 814066740 is 47660418.

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 = 814066695 and 814066704.

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, 753226 + ... + 754305.

It is an arithmetic number, because the mean of its divisors is an integer number (52763620).

Almost surely, 2^814066740 is an apocalyptic number.

It is an amenable number.

814066740 is an abundant number, since it is smaller than the sum of its proper divisors (1718587020).

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

814066740 is a wasteful number, since it uses less digits than its factorization.

814066740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507549 (or 1507541 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 814066740 is about 28531.8548292956. The cubic root of 814066740 is about 933.7271861009.

The spelling of 814066740 in words is "eight hundred fourteen million, sixty-six thousand, seven hundred forty".