2642228440 has 32 divisors (see below), whose sum is σ = 6011820000. Its totient is φ = 1045014784.

The previous prime is 2642228401. The next prime is 2642228507. The reversal of 2642228440 is 448222462.

It is a super-2 number, since 2×2642228440² = 13962742258289667200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2642228396 and 2642228405.

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, 367540 + ... + 374659.

It is an arithmetic number, because the mean of its divisors is an integer number (187869375).

Almost surely, 2^2642228440 is an apocalyptic number.

2642228440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642228440 is an abundant number, since it is smaller than the sum of its proper divisors (3369591560).

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

2642228440 is a wasteful number, since it uses less digits than its factorization.

2642228440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742299 (or 742295 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 2642228440 is about 51402.6112177193. The cubic root of 2642228440 is about 1382.4734119782.

The spelling of 2642228440 in words is "two billion, six hundred forty-two million, two hundred twenty-eight thousand, four hundred forty".