9006556438 has 16 divisors (see below), whose sum is σ = 14739459840. Its totient is φ = 4093484200.

The previous prime is 9006556423. The next prime is 9006556439. The reversal of 9006556438 is 8346556009.

It is a super-2 number, since 2×9006556438² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9006556439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414423 + ... + 435613.

It is an arithmetic number, because the mean of its divisors is an integer number (921216240).

Almost surely, 2^9006556438 is an apocalyptic number.

9006556438 is a deficient number, since it is larger than the sum of its proper divisors (5732903402).

9006556438 is a wasteful number, since it uses less digits than its factorization.

9006556438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40523.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 9006556438 is about 94902.8789763514. The cubic root of 9006556438 is about 2080.5888093573.

The spelling of 9006556438 in words is "nine billion, six million, five hundred fifty-six thousand, four hundred thirty-eight".