1040342100 has 72 divisors (see below), whose sum is σ = 3440071488. Its totient is φ = 237792000.

The previous prime is 1040342087. The next prime is 1040342101. The reversal of 1040342100 is 12430401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1040342100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040342101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245601 + ... + 249800.

Almost surely, 2^1040342100 is an apocalyptic number.

1040342100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040342100 is an abundant number, since it is smaller than the sum of its proper divisors (2399729388).

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

1040342100 is a wasteful number, since it uses less digits than its factorization.

1040342100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495425 (or 495418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1040342100 is about 32254.3345924234. The cubic root of 1040342100 is about 1013.2704819724.

Adding to 1040342100 its reverse (12430401), we get a palindrome (1052772501).

The spelling of 1040342100 in words is "one billion, forty million, three hundred forty-two thousand, one hundred".