1896986454 has 64 divisors (see below), whose sum is σ = 4317511680. Its totient is φ = 554954400.

The previous prime is 1896986453. The next prime is 1896986489. The reversal of 1896986454 is 4546896981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896986453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227499 + ... + 235689.

It is an arithmetic number, because the mean of its divisors is an integer number (67461120).

Almost surely, 2^1896986454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1896986454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2158755840).

1896986454 is an abundant number, since it is smaller than the sum of its proper divisors (2420525226).

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

1896986454 is a wasteful number, since it uses less digits than its factorization.

1896986454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258 (or 8236 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 60.

The square root of 1896986454 is about 43554.4079743945. The cubic root of 1896986454 is about 1237.9071647845.

The spelling of 1896986454 in words is "one billion, eight hundred ninety-six million, nine hundred eighty-six thousand, four hundred fifty-four".