381498 has 32 divisors (see below), whose sum is σ = 845376. Its totient is φ = 114048.

The previous prime is 381487. The next prime is 381509. The reversal of 381498 is 894183.

381498 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (381487) and next prime (381509).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

381498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5190 + ... + 5262.

It is an arithmetic number, because the mean of its divisors is an integer number (26418).

2³⁸¹⁴⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422688).

381498 is an abundant number, since it is smaller than the sum of its proper divisors (463878).

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

381498 is a wasteful number, since it uses less digits than its factorization.

381498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158.

The product of its digits is 6912, while the sum is 33.

The square root of 381498 is about 617.6552436432. The cubic root of 381498 is about 72.5266172580.

The spelling of 381498 in words is "three hundred eighty-one thousand, four hundred ninety-eight".