1897049466 has 48 divisors (see below), whose sum is σ = 4444221600. Its totient is φ = 581364000.

The previous prime is 1897049423. The next prime is 1897049491. The reversal of 1897049466 is 6649407981.

1897049466 is a `hidden beast` number, since 1 + 8 + 97 + 0 + 494 + 66 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42585 + ... + 74883.

It is an arithmetic number, because the mean of its divisors is an integer number (92587950).

Almost surely, 2^1897049466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897049466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222110800).

1897049466 is an abundant number, since it is smaller than the sum of its proper divisors (2547172134).

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

1897049466 is a wasteful number, since it uses less digits than its factorization.

1897049466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32571 (or 32568 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1897049466 is about 43555.1313394874. The cubic root of 1897049466 is about 1237.9208711103.

The spelling of 1897049466 in words is "one billion, eight hundred ninety-seven million, forty-nine thousand, four hundred sixty-six".