2013420440 has 32 divisors (see below), whose sum is σ = 4570296480. Its totient is φ = 798239232.

The previous prime is 2013420427. The next prime is 2013420463. The reversal of 2013420440 is 440243102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218204 + ... + 227243.

It is an arithmetic number, because the mean of its divisors is an integer number (142821765).

Almost surely, 2^2013420440 is an apocalyptic number.

2013420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013420440 is an abundant number, since it is smaller than the sum of its proper divisors (2556876040).

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

2013420440 is a wasteful number, since it uses less digits than its factorization.

2013420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445571 (or 445567 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2013420440 is about 44871.1537627461. The cubic root of 2013420440 is about 1262.7328857055.

Adding to 2013420440 its reverse (440243102), we get a palindrome (2453663542).

The spelling of 2013420440 in words is "two billion, thirteen million, four hundred twenty thousand, four hundred forty".