1039216638 has 16 divisors (see below), whose sum is σ = 2082281616. Its totient is φ = 345764160.

The previous prime is 1039216583. The next prime is 1039216643. The reversal of 1039216638 is 8366129301.

It is a junction number, because it is equal to n+sod(n) for n = 1039216596 and 1039216605.

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, 156831 + ... + 163322.

It is an arithmetic number, because the mean of its divisors is an integer number (130142601).

Almost surely, 2^1039216638 is an apocalyptic number.

1039216638 is an abundant number, since it is smaller than the sum of its proper divisors (1043064978).

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

1039216638 is a wasteful number, since it uses less digits than its factorization.

1039216638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320699.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1039216638 is about 32236.8831930136. The cubic root of 1039216638 is about 1012.9049583288.

The spelling of 1039216638 in words is "one billion, thirty-nine million, two hundred sixteen thousand, six hundred thirty-eight".