1438998 has 16 divisors (see below), whose sum is σ = 3139776. Its totient is φ = 436040.

The previous prime is 1438993. The next prime is 1439017. The reversal of 1438998 is 8998341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438991) 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, 10836 + ... + 10967.

It is an arithmetic number, because the mean of its divisors is an integer number (196236).

2^1438998 is an apocalyptic number.

1438998 is an abundant number, since it is smaller than the sum of its proper divisors (1700778).

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

1438998 is a wasteful number, since it uses less digits than its factorization.

1438998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819.

The product of its digits is 62208, while the sum is 42.

The square root of 1438998 is about 1199.5824273471. The cubic root of 1438998 is about 112.8981252188.

The spelling of 1438998 in words is "one million, four hundred thirty-eight thousand, nine hundred ninety-eight".