2642422440 has 64 divisors (see below), whose sum is σ = 9059736960. Its totient is φ = 603982080.

The previous prime is 2642422429. The next prime is 2642422441. The reversal of 2642422440 is 442242462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2642422398 and 2642422407.

It is not an unprimeable number, because it can be changed into a prime (2642422441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572031 + ... + 1573710.

It is an arithmetic number, because the mean of its divisors is an integer number (141558390).

Almost surely, 2^2642422440 is an apocalyptic number.

2642422440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642422440 is an abundant number, since it is smaller than the sum of its proper divisors (6417314520).

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

2642422440 is a wasteful number, since it uses less digits than its factorization.

2642422440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145762 (or 3145758 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 2642422440 is about 51404.4982467488. The cubic root of 2642422440 is about 1382.5072462061.

The spelling of 2642422440 in words is "two billion, six hundred forty-two million, four hundred twenty-two thousand, four hundred forty".