1438428064 has 12 divisors (see below), whose sum is σ = 2831905314. Its totient is φ = 719214016.

The previous prime is 1438428059. The next prime is 1438428113. The reversal of 1438428064 is 4608248341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1435803664 + 2624400 = 37892^2 + 1620^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22475407 + ... + 22475470.

Almost surely, 2^1438428064 is an apocalyptic number.

It is an amenable number.

1438428064 is a deficient number, since it is larger than the sum of its proper divisors (1393477250).

1438428064 is an equidigital number, since it uses as much as digits as its factorization.

1438428064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44950887 (or 44950879 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 1438428064 is about 37926.6141910928. The cubic root of 1438428064 is about 1128.8321827134.

The spelling of 1438428064 in words is "one billion, four hundred thirty-eight million, four hundred twenty-eight thousand, sixty-four".