183742968240 has 320 divisors, whose sum is σ = 683161274880. Its totient is φ = 45123886080.

The previous prime is 183742968217. The next prime is 183742968257. The reversal of 183742968240 is 42869247381.

183742968240 is a `hidden beast` number, since 1 + 8 + 374 + 29 + 6 + 8 + 240 = 666.

It is a super-2 number, since 2×183742968240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12432055 + ... + 12446825.

It is an arithmetic number, because the mean of its divisors is an integer number (2134878984).

Almost surely, 2^183742968240 is an apocalyptic number.

183742968240 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 183742968240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341580637440).

183742968240 is an abundant number, since it is smaller than the sum of its proper divisors (499418306640).

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

183742968240 is a wasteful number, since it uses less digits than its factorization.

183742968240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249 (or 15237 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 183742968240 in words is "one hundred eighty-three billion, seven hundred forty-two million, nine hundred sixty-eight thousand, two hundred forty".