1004533398 has 24 divisors (see below), whose sum is σ = 2374352136. Its totient is φ = 304404000.

The previous prime is 1004533391. The next prime is 1004533403. The reversal of 1004533398 is 8933354001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004533391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536503 + ... + 2536898.

It is an arithmetic number, because the mean of its divisors is an integer number (98931339).

Almost surely, 2^1004533398 is an apocalyptic number.

1004533398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1004533398 is an abundant number, since it is smaller than the sum of its proper divisors (1369818738).

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

1004533398 is a wasteful number, since it uses less digits than its factorization.

1004533398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073420 (or 5073417 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1004533398 is about 31694.3748636884. The cubic root of 1004533398 is about 1001.5088548786.

Adding to 1004533398 its reverse (8933354001), we get a palindrome (9937887399).

The spelling of 1004533398 in words is "one billion, four million, five hundred thirty-three thousand, three hundred ninety-eight".