381169624 has 64 divisors (see below), whose sum is σ = 802690560. Its totient is φ = 168205440.

The previous prime is 381169619. The next prime is 381169627. The reversal of 381169624 is 426961183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381169627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649059 + ... + 649645.

It is an arithmetic number, because the mean of its divisors is an integer number (12542040).

Almost surely, 2^381169624 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 381169624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401345280).

381169624 is an abundant number, since it is smaller than the sum of its proper divisors (421520936).

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

381169624 is a wasteful number, since it uses less digits than its factorization.

381169624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 804 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 381169624 is about 19523.5658628233. The cubic root of 381169624 is about 725.0580208817.

The spelling of 381169624 in words is "three hundred eighty-one million, one hundred sixty-nine thousand, six hundred twenty-four".