4004212440 has 64 divisors (see below), whose sum is σ = 12084629760. Its totient is φ = 1061390720.

The previous prime is 4004212403. The next prime is 4004212463. The reversal of 4004212440 is 442124004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79866 + ... + 119945.

It is an arithmetic number, because the mean of its divisors is an integer number (188822340).

Almost surely, 2^4004212440 is an apocalyptic number.

4004212440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4004212440 is an abundant number, since it is smaller than the sum of its proper divisors (8080417320).

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

4004212440 is a wasteful number, since it uses less digits than its factorization.

4004212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199992 (or 199988 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4004212440 is about 63278.8467025119. The cubic root of 4004212440 is about 1587.9580924463.

Adding to 4004212440 its reverse (442124004), we get a palindrome (4446336444).

The spelling of 4004212440 in words is "four billion, four million, two hundred twelve thousand, four hundred forty".