1040129998 has 8 divisors (see below), whose sum is σ = 1586639160. Its totient is φ = 511250280.

The previous prime is 1040129983. The next prime is 1040129999. The reversal of 1040129998 is 8999210401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040129999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4407213 + ... + 4407448.

It is an arithmetic number, because the mean of its divisors is an integer number (198329895).

Almost surely, 2^1040129998 is an apocalyptic number.

1040129998 is a deficient number, since it is larger than the sum of its proper divisors (546509162).

1040129998 is an equidigital number, since it uses as much as digits as its factorization.

1040129998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8814722.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 1040129998 is about 32251.0464636421. The cubic root of 1040129998 is about 1013.2016163871.

The spelling of 1040129998 in words is "one billion, forty million, one hundred twenty-nine thousand, nine hundred ninety-eight".