906349638 has 16 divisors (see below), whose sum is σ = 1891512576. Its totient is φ = 288981000.

The previous prime is 906349621. The next prime is 906349643. The reversal of 906349638 is 836943609.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3283738 + ... + 3284013.

It is an arithmetic number, because the mean of its divisors is an integer number (118219536).

Almost surely, 2^906349638 is an apocalyptic number.

906349638 is an abundant number, since it is smaller than the sum of its proper divisors (985162938).

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

906349638 is a wasteful number, since it uses less digits than its factorization.

906349638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567779.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 906349638 is about 30105.6412986005. The cubic root of 906349638 is about 967.7546242740.

The spelling of 906349638 in words is "nine hundred six million, three hundred forty-nine thousand, six hundred thirty-eight".