2402220440 has 16 divisors (see below), whose sum is σ = 5404996080. Its totient is φ = 960888160.

The previous prime is 2402220383. The next prime is 2402220451. The reversal of 2402220440 is 440222042.

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 3 ways as a sum of consecutive naturals, for example, 30027716 + ... + 30027795.

It is an arithmetic number, because the mean of its divisors is an integer number (337812255).

Almost surely, 2^2402220440 is an apocalyptic number.

2402220440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402220440 is an abundant number, since it is smaller than the sum of its proper divisors (3002775640).

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

2402220440 is a wasteful number, since it uses less digits than its factorization.

2402220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60055522 (or 60055518 counting only the distinct ones).

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

The square root of 2402220440 is about 49012.4518872500. The cubic root of 2402220440 is about 1339.2786716995.

Adding to 2402220440 its reverse (440222042), we get a palindrome (2842442482).

The spelling of 2402220440 in words is "two billion, four hundred two million, two hundred twenty thousand, four hundred forty".