1897826448 has 120 divisors (see below), whose sum is σ = 5887361280. Its totient is φ = 524724480.

The previous prime is 1897826423. The next prime is 1897826471. The reversal of 1897826448 is 8446287981.

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, 59898 + ... + 85926.

It is an arithmetic number, because the mean of its divisors is an integer number (49061344).

Almost surely, 2^1897826448 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 1897826448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2943680640).

1897826448 is an abundant number, since it is smaller than the sum of its proper divisors (3989534832).

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

1897826448 is a wasteful number, since it uses less digits than its factorization.

1897826448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26085 (or 26072 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 57.

The square root of 1897826448 is about 43564.0499494710. The cubic root of 1897826448 is about 1238.0898547462.

The spelling of 1897826448 in words is "one billion, eight hundred ninety-seven million, eight hundred twenty-six thousand, four hundred forty-eight".