1854198072 has 24 divisors (see below), whose sum is σ = 5021786640. Its totient is φ = 618066000.

The previous prime is 1854198043. The next prime is 1854198083. The reversal of 1854198072 is 2708914581.

1854198072 is a `hidden beast` number, since 18 + 541 + 98 + 0 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12876304 + ... + 12876447.

It is an arithmetic number, because the mean of its divisors is an integer number (209241110).

Almost surely, 2^1854198072 is an apocalyptic number.

1854198072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1854198072 is an abundant number, since it is smaller than the sum of its proper divisors (3167588568).

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

1854198072 is a wasteful number, since it uses less digits than its factorization.

1854198072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25752763 (or 25752756 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 1854198072 is about 43060.4002768205. The cubic root of 1854198072 is about 1228.5288936161.

The spelling of 1854198072 in words is "one billion, eight hundred fifty-four million, one hundred ninety-eight thousand, seventy-two".