1894389102 has 12 divisors (see below), whose sum is σ = 4104509760. Its totient is φ = 631463028.

The previous prime is 1894389071. The next prime is 1894389109. The reversal of 1894389102 is 2019834981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894389109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52621902 + ... + 52621937.

It is an arithmetic number, because the mean of its divisors is an integer number (342042480).

Almost surely, 2^1894389102 is an apocalyptic number.

1894389102 is an abundant number, since it is smaller than the sum of its proper divisors (2210120658).

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

1894389102 is a wasteful number, since it uses less digits than its factorization.

1894389102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105243847 (or 105243844 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 1894389102 is about 43524.5804345085. The cubic root of 1894389102 is about 1237.3419263044.

The spelling of 1894389102 in words is "one billion, eight hundred ninety-four million, three hundred eighty-nine thousand, one hundred two".