866457052 has 24 divisors (see below), whose sum is σ = 1562022000. Its totient is φ = 420301056.

The previous prime is 866457049. The next prime is 866457089. The reversal of 866457052 is 250754668.

It is a super-3 number, since 3×866457052³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8724 + ... + 42532.

It is an arithmetic number, because the mean of its divisors is an integer number (65084250).

Almost surely, 2^866457052 is an apocalyptic number.

It is an amenable number.

866457052 is a deficient number, since it is larger than the sum of its proper divisors (695564948).

866457052 is a wasteful number, since it uses less digits than its factorization.

866457052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34005 (or 34003 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 866457052 is about 29435.6425443713. The cubic root of 866457052 is about 953.3426301385.

The spelling of 866457052 in words is "eight hundred sixty-six million, four hundred fifty-seven thousand, fifty-two".