1897394060 has 48 divisors (see below), whose sum is σ = 4171087872. Its totient is φ = 724113600.

The previous prime is 1897393999. The next prime is 1897394071. The reversal of 1897394060 is 604937981.

It is a junction number, because it is equal to n+sod(n) for n = 1897393996 and 1897394014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22469 + ... + 65571.

It is an arithmetic number, because the mean of its divisors is an integer number (86897664).

Almost surely, 2^1897394060 is an apocalyptic number.

1897394060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897394060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2085543936).

1897394060 is an abundant number, since it is smaller than the sum of its proper divisors (2273693812).

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

1897394060 is a wasteful number, since it uses less digits than its factorization.

1897394060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43214 (or 43212 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1897394060 is about 43559.0869968598. The cubic root of 1897394060 is about 1237.9958215857.

The spelling of 1897394060 in words is "one billion, eight hundred ninety-seven million, three hundred ninety-four thousand, sixty".