2042402240 has 56 divisors (see below), whose sum is σ = 4870441872. Its totient is φ = 815790080.

The previous prime is 2042402239. The next prime is 2042402251. The reversal of 2042402240 is 422042402.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239327 + ... + 247713.

Almost surely, 2^2042402240 is an apocalyptic number.

2042402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2435220936).

2042402240 is an abundant number, since it is smaller than the sum of its proper divisors (2828039632).

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

2042402240 is an equidigital number, since it uses as much as digits as its factorization.

2042402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165 (or 9155 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2042402240 is about 45192.9445820916. The cubic root of 2042402240 is about 1268.7627688783.

Adding to 2042402240 its reverse (422042402), we get a palindrome (2464444642).

The spelling of 2042402240 in words is "two billion, forty-two million, four hundred two thousand, two hundred forty".