2381141628 has 72 divisors (see below), whose sum is σ = 6236892480. Its totient is φ = 765072000.

The previous prime is 2381141573. The next prime is 2381141629. The reversal of 2381141628 is 8261411832.

2381141628 is a `hidden beast` number, since 23 + 8 + 1 + 1 + 4 + 1 + 628 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2381141592 and 2381141601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381141629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 782526 + ... + 785562.

Almost surely, 2^2381141628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2381141628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3118446240).

2381141628 is an abundant number, since it is smaller than the sum of its proper divisors (3855750852).

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

2381141628 is a wasteful number, since it uses less digits than its factorization.

2381141628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3822 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 2381141628 is about 48796.9428140739. The cubic root of 2381141628 is about 1335.3498927175.

The spelling of 2381141628 in words is "two billion, three hundred eighty-one million, one hundred forty-one thousand, six hundred twenty-eight".