4004451402 has 24 divisors (see below), whose sum is σ = 9316479456. Its totient is φ = 1144128888.

The previous prime is 4004451397. The next prime is 4004451403. The reversal of 4004451402 is 2041544004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4004451403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6809998 + ... + 6810585.

It is an arithmetic number, because the mean of its divisors is an integer number (388186644).

Almost surely, 2^4004451402 is an apocalyptic number.

4004451402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4004451402 is an abundant number, since it is smaller than the sum of its proper divisors (5312028054).

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

4004451402 is a wasteful number, since it uses less digits than its factorization.

4004451402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13620602 (or 13620595 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 4004451402 is about 63280.7348408661. The cubic root of 4004451402 is about 1587.9896803552.

Adding to 4004451402 its reverse (2041544004), we get a palindrome (6045995406).

The spelling of 4004451402 in words is "four billion, four million, four hundred fifty-one thousand, four hundred two".