4004454492 has 72 divisors (see below), whose sum is σ = 10245925872. Its totient is φ = 1318579200.

The previous prime is 4004454479. The next prime is 4004454521. The reversal of 4004454492 is 2944544004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3390142 + ... + 3391322.

It is an arithmetic number, because the mean of its divisors is an integer number (142304526).

Almost surely, 2^4004454492 is an apocalyptic number.

It is an amenable number.

4004454492 is an abundant number, since it is smaller than the sum of its proper divisors (6241471380).

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

4004454492 is a wasteful number, since it uses less digits than its factorization.

4004454492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2254 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 4004454492 is about 63280.7592558749. The cubic root of 4004454492 is about 1587.9900888079.

Adding to 4004454492 its reverse (2944544004), we get a palindrome (6948998496).

The spelling of 4004454492 in words is "four billion, four million, four hundred fifty-four thousand, four hundred ninety-two".