381285572 has 12 divisors (see below), whose sum is σ = 668157840. Its totient is φ = 190383336.

The previous prime is 381285529. The next prime is 381285577. The reversal of 381285572 is 275582183.

It is a super-3 number, since 3×381285572³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (381285577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61538 + ... + 67449.

It is an arithmetic number, because the mean of its divisors is an integer number (55679820).

Almost surely, 2^381285572 is an apocalyptic number.

It is an amenable number.

381285572 is a deficient number, since it is larger than the sum of its proper divisors (286872268).

381285572 is a wasteful number, since it uses less digits than its factorization.

381285572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129730 (or 129728 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 381285572 is about 19526.5350740985. The cubic root of 381285572 is about 725.1315319025.

The spelling of 381285572 in words is "three hundred eighty-one million, two hundred eighty-five thousand, five hundred seventy-two".