855190620 has 144 divisors (see below), whose sum is σ = 2702219520. Its totient is φ = 218723328.

The previous prime is 855190591. The next prime is 855190639. The reversal of 855190620 is 26091558.

It is a happy number.

855190620 is a `hidden beast` number, since 85 + 519 + 0 + 62 + 0 = 666.

It is a super-3 number, since 3×855190620³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 485301 + ... + 487059.

Almost surely, 2^855190620 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 855190620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351109760).

855190620 is an abundant number, since it is smaller than the sum of its proper divisors (1847028900).

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

855190620 is a wasteful number, since it uses less digits than its factorization.

855190620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 855190620 is about 29243.6423859956. The cubic root of 855190620 is about 949.1925253122.

The spelling of 855190620 in words is "eight hundred fifty-five million, one hundred ninety thousand, six hundred twenty".