1894374720 has 168 divisors, whose sum is σ = 7446776064. Its totient is φ = 432995328.

The previous prime is 1894374659. The next prime is 1894374751. The reversal of 1894374720 is 274734981.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 26824 + ... + 67143.

It is an arithmetic number, because the mean of its divisors is an integer number (44326048).

Almost surely, 2^1894374720 is an apocalyptic number.

1894374720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1894374720 is an abundant number, since it is smaller than the sum of its proper divisors (5552401344).

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

1894374720 is a wasteful number, since it uses less digits than its factorization.

1894374720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93997 (or 93984 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 1894374720 is about 43524.4152172088. The cubic root of 1894374720 is about 1237.3387950405.

The spelling of 1894374720 in words is "one billion, eight hundred ninety-four million, three hundred seventy-four thousand, seven hundred twenty".