855274990 has 16 divisors (see below), whose sum is σ = 1540054800. Its totient is φ = 341985600.

The previous prime is 855274967. The next prime is 855274993. The reversal of 855274990 is 99472558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855274993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16465 + ... + 44515.

It is an arithmetic number, because the mean of its divisors is an integer number (96253425).

Almost surely, 2^855274990 is an apocalyptic number.

855274990 is a deficient number, since it is larger than the sum of its proper divisors (684779810).

855274990 is a wasteful number, since it uses less digits than its factorization.

855274990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31107.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 855274990 is about 29245.0848861822. The cubic root of 855274990 is about 949.2237389145.

The spelling of 855274990 in words is "eight hundred fifty-five million, two hundred seventy-four thousand, nine hundred ninety".