1852972290 has 192 divisors, whose sum is σ = 5590166400. Its totient is φ = 421742592.

The previous prime is 1852972267. The next prime is 1852972309. The reversal of 1852972290 is 922792581.

It is a happy number.

1852972290 is a `hidden beast` number, since 18 + 529 + 7 + 22 + 90 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1172721 + ... + 1174299.

It is an arithmetic number, because the mean of its divisors is an integer number (29115450).

Almost surely, 2^1852972290 is an apocalyptic number.

1852972290 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 1852972290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2795083200).

1852972290 is an abundant number, since it is smaller than the sum of its proper divisors (3737194110).

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

1852972290 is a wasteful number, since it uses less digits than its factorization.

1852972290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1852972290 is about 43046.1646375145. The cubic root of 1852972290 is about 1228.2581133808.

The spelling of 1852972290 in words is "one billion, eight hundred fifty-two million, nine hundred seventy-two thousand, two hundred ninety".