1894149312 has 112 divisors (see below), whose sum is σ = 5594616192. Its totient is φ = 560609280.

The previous prime is 1894149263. The next prime is 1894149319. The reversal of 1894149312 is 2139414981.

It is not an unprimeable number, because it can be changed into a prime (1894149319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80388 + ... + 101244.

Almost surely, 2^1894149312 is an apocalyptic number.

1894149312 is a gapful number since it is divisible by the number (12) 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 1894149312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2797308096).

1894149312 is an abundant number, since it is smaller than the sum of its proper divisors (3700466880).

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

1894149312 is a wasteful number, since it uses less digits than its factorization.

1894149312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20926 (or 20916 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1894149312 is about 43521.8256969994. The cubic root of 1894149312 is about 1237.2897169070.

The spelling of 1894149312 in words is "one billion, eight hundred ninety-four million, one hundred forty-nine thousand, three hundred twelve".