1040430402 has 24 divisors (see below), whose sum is σ = 2459199600. Its totient is φ = 315281880.

The previous prime is 1040430389. The next prime is 1040430403. The reversal of 1040430402 is 2040340401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1040430403) 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, 2627152 + ... + 2627547.

It is an arithmetic number, because the mean of its divisors is an integer number (102466650).

Almost surely, 2^1040430402 is an apocalyptic number.

1040430402 is an abundant number, since it is smaller than the sum of its proper divisors (1418769198).

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

1040430402 is a wasteful number, since it uses less digits than its factorization.

1040430402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254718 (or 5254715 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1040430402 is about 32255.7034026542. The cubic root of 1040430402 is about 1013.2991492345.

Adding to 1040430402 its reverse (2040340401), we get a palindrome (3080770803).

Subtracting 1040430402 from its reverse (2040340401), we obtain a palindrome (999909999).

The spelling of 1040430402 in words is "one billion, forty million, four hundred thirty thousand, four hundred two".