814710140 has 48 divisors (see below), whose sum is σ = 1792929600. Its totient is φ = 310379520.

The previous prime is 814710133. The next prime is 814710181. The reversal of 814710140 is 41017418.

It is a super-2 number, since 2×814710140² = 1327505224437639200, which contains 22 as substring.

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, 107186 + ... + 114534.

It is an arithmetic number, because the mean of its divisors is an integer number (37352700).

Almost surely, 2^814710140 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 814710140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896464800).

814710140 is an abundant number, since it is smaller than the sum of its proper divisors (978219460).

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

814710140 is a wasteful number, since it uses less digits than its factorization.

814710140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622 (or 7620 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 814710140 is about 28543.1277192952. The cubic root of 814710140 is about 933.9731126491.

Adding to 814710140 its reverse (41017418), we get a palindrome (855727558).

The spelling of 814710140 in words is "eight hundred fourteen million, seven hundred ten thousand, one hundred forty".