381033554 has 16 divisors (see below), whose sum is σ = 624174336. Its totient is φ = 173012400.

The previous prime is 381033553. The next prime is 381033577. The reversal of 381033554 is 455330183.

It is a self number, because there is not a number n which added to its sum of digits gives 381033554.

It is not an unprimeable number, because it can be changed into a prime (381033553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13064 + ... + 30540.

It is an arithmetic number, because the mean of its divisors is an integer number (39010896).

Almost surely, 2^381033554 is an apocalyptic number.

381033554 is a deficient number, since it is larger than the sum of its proper divisors (243140782).

381033554 is a wasteful number, since it uses less digits than its factorization.

381033554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18481.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 381033554 is about 19520.0807887672. The cubic root of 381033554 is about 724.9717334996.

The spelling of 381033554 in words is "three hundred eighty-one million, thirty-three thousand, five hundred fifty-four".