381529974 has 96 divisors (see below), whose sum is σ = 932346720. Its totient is φ = 103638528.

The previous prime is 381529943. The next prime is 381529979. The reversal of 381529974 is 479925183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381529979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 622092 + ... + 622704.

It is an arithmetic number, because the mean of its divisors is an integer number (9711945).

Almost surely, 2^381529974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381529974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466173360).

381529974 is an abundant number, since it is smaller than the sum of its proper divisors (550816746).

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

381529974 is a wasteful number, since it uses less digits than its factorization.

381529974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 727 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 381529974 is about 19532.7922735076. The cubic root of 381529974 is about 725.2864339468.

The spelling of 381529974 in words is "three hundred eighty-one million, five hundred twenty-nine thousand, nine hundred seventy-four".