1870797150 has 72 divisors (see below), whose sum is σ = 5036452200. Its totient is φ = 497862720.

The previous prime is 1870797091. The next prime is 1870797169. The reversal of 1870797150 is 517970781.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1870797096 and 1870797105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 231376 + ... + 239324.

It is an arithmetic number, because the mean of its divisors is an integer number (69950725).

Almost surely, 2^1870797150 is an apocalyptic number.

1870797150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870797150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518226100).

1870797150 is an abundant number, since it is smaller than the sum of its proper divisors (3165655050).

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

1870797150 is a wasteful number, since it uses less digits than its factorization.

1870797150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490 (or 8482 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 45.

The square root of 1870797150 is about 43252.7126316951. The cubic root of 1870797150 is about 1232.1840039549.

The spelling of 1870797150 in words is "one billion, eight hundred seventy million, seven hundred ninety-seven thousand, one hundred fifty".