1040140998 has 24 divisors (see below), whose sum is σ = 2426996208. Its totient is φ = 320043312.

The previous prime is 1040140993. The next prime is 1040141009. The reversal of 1040140998 is 8990410401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040140993) 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, 2222290 + ... + 2222757.

It is an arithmetic number, because the mean of its divisors is an integer number (101124842).

Almost surely, 2^1040140998 is an apocalyptic number.

1040140998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1040140998 is an abundant number, since it is smaller than the sum of its proper divisors (1386855210).

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

1040140998 is a wasteful number, since it uses less digits than its factorization.

1040140998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445068 (or 4445065 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1040140998 is about 32251.2170002932. The cubic root of 1040140998 is about 1013.2051881132.

The spelling of 1040140998 in words is "one billion, forty million, one hundred forty thousand, nine hundred ninety-eight".