4642440440 has 32 divisors (see below), whose sum is σ = 11395082160. Its totient is φ = 1688160000.

The previous prime is 4642440419. The next prime is 4642440469. The reversal of 4642440440 is 440442464.

It is a junction number, because it is equal to n+sod(n) for n = 4642440397 and 4642440406.

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, 5275061 + ... + 5275940.

Almost surely, 2^4642440440 is an apocalyptic number.

4642440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4642440440 is an abundant number, since it is smaller than the sum of its proper divisors (6752641720).

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

4642440440 is a wasteful number, since it uses less digits than its factorization.

4642440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551023 (or 10551019 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

The square root of 4642440440 is about 68135.4565553061. The cubic root of 4642440440 is about 1668.2025481172.

The spelling of 4642440440 in words is "four billion, six hundred forty-two million, four hundred forty thousand, four hundred forty".