1812741480 has 192 divisors, whose sum is σ = 6485469120. Its totient is φ = 435456000.

The previous prime is 1812741479. The next prime is 1812741503. The reversal of 1812741480 is 841472181.

1812741480 is a `hidden beast` number, since 18 + 127 + 41 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 445455 + ... + 449505.

It is an arithmetic number, because the mean of its divisors is an integer number (33778485).

Almost surely, 2^1812741480 is an apocalyptic number.

1812741480 is a gapful number since it is divisible by the number (10) 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 1812741480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3242734560).

1812741480 is an abundant number, since it is smaller than the sum of its proper divisors (4672727640).

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

1812741480 is a wasteful number, since it uses less digits than its factorization.

1812741480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192 (or 4185 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 1812741480 is about 42576.3018591329. The cubic root of 1812741480 is about 1219.3038848849.

The spelling of 1812741480 in words is "one billion, eight hundred twelve million, seven hundred forty-one thousand, four hundred eighty".