1040220402 has 64 divisors (see below), whose sum is σ = 2360171520. Its totient is φ = 303234624.

The previous prime is 1040220383. The next prime is 1040220421. The reversal of 1040220402 is 2040220401.

It is an interprime number because it is at equal distance from previous prime (1040220383) and next prime (1040220421).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189249 + ... + 194667.

It is an arithmetic number, because the mean of its divisors is an integer number (36877680).

Almost surely, 2^1040220402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040220402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180085760).

1040220402 is an abundant number, since it is smaller than the sum of its proper divisors (1319951118).

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

1040220402 is a wasteful number, since it uses less digits than its factorization.

1040220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1040220402 is about 32252.4480001131. The cubic root of 1040220402 is about 1013.2309700337.

Adding to 1040220402 its reverse (2040220401), we get a palindrome (3080440803).

Subtracting 1040220402 from its reverse (2040220401), we obtain a palindrome (999999999).

The spelling of 1040220402 in words is "one billion, forty million, two hundred twenty thousand, four hundred two".