866472530 has 48 divisors (see below), whose sum is σ = 1959249600. Its totient is φ = 270066720.

The previous prime is 866472493. The next prime is 866472539. The reversal of 866472530 is 35274668.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (866472539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42680 + ... + 59619.

It is an arithmetic number, because the mean of its divisors is an integer number (40817700).

Almost surely, 2^866472530 is an apocalyptic number.

866472530 is an abundant number, since it is smaller than the sum of its proper divisors (1092777070).

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

866472530 is a wasteful number, since it uses less digits than its factorization.

866472530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102335 (or 102324 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 866472530 is about 29435.9054557525. The cubic root of 866472530 is about 953.3483067997.

The spelling of 866472530 in words is "eight hundred sixty-six million, four hundred seventy-two thousand, five hundred thirty".