1040304030402 has 192 divisors, whose sum is σ = 2680794918144. Its totient is φ = 266564390400.

The previous prime is 1040304030401. The next prime is 1040304030421. The reversal of 1040304030402 is 2040304030401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1040304030401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105065652 + ... + 105075552.

It is an arithmetic number, because the mean of its divisors is an integer number (13962473532).

Almost surely, 2^{1040304030402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040304030402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340397459072).

1040304030402 is an abundant number, since it is smaller than the sum of its proper divisors (1640490887742).

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

1040304030402 is a wasteful number, since it uses less digits than its factorization.

1040304030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713 (or 10706 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 1040304030402 its reverse (2040304030401), we get a palindrome (3080608060803).

Subtracting 1040304030402 from its reverse (2040304030401), we obtain a palindrome (999999999999).

The spelling of 1040304030402 in words is "one trillion, forty billion, three hundred four million, thirty thousand, four hundred two".