4138627440 has 40 divisors (see below), whose sum is σ = 12829745808. Its totient is φ = 1103633920.

The previous prime is 4138627433. The next prime is 4138627457. The reversal of 4138627440 is 447268314.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 8621901 + ... + 8622380.

Almost surely, 2^4138627440 is an apocalyptic number.

4138627440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4138627440 is an abundant number, since it is smaller than the sum of its proper divisors (8691118368).

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

4138627440 is a wasteful number, since it uses less digits than its factorization.

4138627440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17244297 (or 17244291 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 4138627440 is about 64332.1648943979. The cubic root of 4138627440 is about 1605.5313038051.

The spelling of 4138627440 in words is "four billion, one hundred thirty-eight million, six hundred twenty-seven thousand, four hundred forty".