866426148 has 144 divisors (see below), whose sum is σ = 2663781120. Its totient is φ = 231800832.

The previous prime is 866426117. The next prime is 866426179. The reversal of 866426148 is 841624668.

866426148 is a `hidden beast` number, since 86 + 6 + 426 + 148 = 666.

It is an interprime number because it is at equal distance from previous prime (866426117) and next prime (866426179).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1126308 + ... + 1127076.

It is an arithmetic number, because the mean of its divisors is an integer number (18498480).

Almost surely, 2^866426148 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 866426148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331890560).

866426148 is an abundant number, since it is smaller than the sum of its proper divisors (1797354972).

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

866426148 is a wasteful number, since it uses less digits than its factorization.

866426148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1061 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 866426148 is about 29435.1175978626. The cubic root of 866426148 is about 953.3312956852.

The spelling of 866426148 in words is "eight hundred sixty-six million, four hundred twenty-six thousand, one hundred forty-eight".