12042739800 has 864 divisors, whose sum is σ = 52677097200. Its totient is φ = 2534353920.

The previous prime is 12042739789. The next prime is 12042739811. The reversal of 12042739800 is 893724021.

12042739800 is a `hidden beast` number, since 120 + 427 + 39 + 80 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12042739789) and next prime (12042739811).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 30958006 + ... + 30958394.

Almost surely, 2^12042739800 is an apocalyptic number.

12042739800 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 12042739800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26338548600).

12042739800 is an abundant number, since it is smaller than the sum of its proper divisors (40634357400).

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

12042739800 is a wasteful number, since it uses less digits than its factorization.

12042739800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 12042739800 in words is "twelve billion, forty-two million, seven hundred thirty-nine thousand, eight hundred".