381039998 has 16 divisors (see below), whose sum is σ = 591727680. Its totient is φ = 183908736.

The previous prime is 381039983. The next prime is 381040007. The reversal of 381039998 is 899930183.

It is a congruent number.

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, 20903 + ... + 34626.

It is an arithmetic number, because the mean of its divisors is an integer number (36982980).

Almost surely, 2^381039998 is an apocalyptic number.

381039998 is a deficient number, since it is larger than the sum of its proper divisors (210687682).

381039998 is a wasteful number, since it uses less digits than its factorization.

381039998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55651.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 381039998 is about 19520.2458488616. The cubic root of 381039998 is about 724.9758203589.

The spelling of 381039998 in words is "three hundred eighty-one million, thirty-nine thousand, nine hundred ninety-eight".