1894549272 has 96 divisors (see below), whose sum is σ = 5949888000. Its totient is φ = 492085440.

The previous prime is 1894549271. The next prime is 1894549277. The reversal of 1894549272 is 2729454981.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894549271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26272 + ... + 66927.

It is an arithmetic number, because the mean of its divisors is an integer number (61978000).

Almost surely, 2^1894549272 is an apocalyptic number.

1894549272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1894549272 is an abundant number, since it is smaller than the sum of its proper divisors (4055338728).

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

1894549272 is a wasteful number, since it uses less digits than its factorization.

1894549272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93237 (or 93222 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 1894549272 is about 43526.4203903790. The cubic root of 1894549272 is about 1237.3767976112.

The spelling of 1894549272 in words is "one billion, eight hundred ninety-four million, five hundred forty-nine thousand, two hundred seventy-two".