1005498280 has 32 divisors (see below), whose sum is σ = 2263402440. Its totient is φ = 402016000.

The previous prime is 1005498163. The next prime is 1005498281. The reversal of 1005498280 is 828945001.

It can be written as a sum of positive squares in 4 ways, for example, as 408282436 + 597215844 = 20206^2 + 24438^2 .

It is a super-2 number, since 2×1005498280² = 2022053582165916800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005498281) 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, 114030 + ... + 122530.

Almost surely, 2^1005498280 is an apocalyptic number.

1005498280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005498280 is an abundant number, since it is smaller than the sum of its proper divisors (1257904160).

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

1005498280 is a wasteful number, since it uses less digits than its factorization.

1005498280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469 (or 11465 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 1005498280 is about 31709.5928702972. The cubic root of 1005498280 is about 1001.8294112138.

The spelling of 1005498280 in words is "one billion, five million, four hundred ninety-eight thousand, two hundred eighty".