1005498 has 24 divisors (see below), whose sum is σ = 2346708. Its totient is φ = 309312.

The previous prime is 1005493. The next prime is 1005503. The reversal of 1005498 is 8945001.

It is an interprime number because it is at equal distance from previous prime (1005493) and next prime (1005503).

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 31329 = 987^2 + 177^2 .

It is a super-2 number, since 2×1005498² = 2022052456008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005493) 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, 1915 + ... + 2382.

2^1005498 is an apocalyptic number.

1005498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1005498 is an abundant number, since it is smaller than the sum of its proper divisors (1341210).

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

1005498 is a wasteful number, since it uses less digits than its factorization.

1005498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1005498 is about 1002.7452318510. The cubic root of 1005498 is about 100.1829318221.

The spelling of 1005498 in words is "one million, five thousand, four hundred ninety-eight".