381554472 has 32 divisors (see below), whose sum is σ = 1027262880. Its totient is φ = 117401280.

The previous prime is 381554461. The next prime is 381554483. The reversal of 381554472 is 274455183.

It is an interprime number because it is at equal distance from previous prime (381554461) and next prime (381554483).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 381554472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611154 + ... + 611777.

It is an arithmetic number, because the mean of its divisors is an integer number (32101965).

Almost surely, 2^381554472 is an apocalyptic number.

It is an amenable number.

381554472 is an abundant number, since it is smaller than the sum of its proper divisors (645708408).

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

381554472 is a wasteful number, since it uses less digits than its factorization.

381554472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222953 (or 1222949 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 381554472 is about 19533.4193627230. The cubic root of 381554472 is about 725.3019571368.

The spelling of 381554472 in words is "three hundred eighty-one million, five hundred fifty-four thousand, four hundred seventy-two".