1000498140 has 36 divisors (see below), whose sum is σ = 3034844904. Its totient is φ = 266799456.

The previous prime is 1000498139. The next prime is 1000498141. The reversal of 1000498140 is 418940001.

It is an interprime number because it is at equal distance from previous prime (1000498139) and next prime (1000498141).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000498141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2778982 + ... + 2779341.

Almost surely, 2^1000498140 is an apocalyptic number.

1000498140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000498140 is an abundant number, since it is smaller than the sum of its proper divisors (2034346764).

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

1000498140 is a wasteful number, since it uses less digits than its factorization.

1000498140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558338 (or 5558333 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1000498140 is about 31630.6519060231. The cubic root of 1000498140 is about 1000.1660191028.

The spelling of 1000498140 in words is "one billion, four hundred ninety-eight thousand, one hundred forty".