816270144 has 28 divisors (see below), whose sum is σ = 2159715264. Its totient is φ = 272089984.

The previous prime is 816270137. The next prime is 816270149. The reversal of 816270144 is 441072618.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816270149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125512 + ... + 2125895.

It is an arithmetic number, because the mean of its divisors is an integer number (77132688).

Almost surely, 2^816270144 is an apocalyptic number.

It is an amenable number.

816270144 is an abundant number, since it is smaller than the sum of its proper divisors (1343445120).

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

816270144 is a wasteful number, since it uses less digits than its factorization.

816270144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251422 (or 4251412 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 816270144 is about 28570.4417886738. The cubic root of 816270144 is about 934.5688553369.

The spelling of 816270144 in words is "eight hundred sixteen million, two hundred seventy thousand, one hundred forty-four".