1438207016 has 8 divisors (see below), whose sum is σ = 2696638170. Its totient is φ = 719103504.

The previous prime is 1438206989. The next prime is 1438207019. The reversal of 1438207016 is 6107028341.

It can be written as a sum of positive squares in only one way, i.e., 1343222500 + 94984516 = 36650^2 + 9746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1438207019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89887931 + ... + 89887946.

Almost surely, 2^1438207016 is an apocalyptic number.

It is an amenable number.

1438207016 is a deficient number, since it is larger than the sum of its proper divisors (1258431154).

1438207016 is a wasteful number, since it uses less digits than its factorization.

1438207016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179775883 (or 179775879 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1438207016 is about 37923.6999249809. The cubic root of 1438207016 is about 1128.7743559589.

The spelling of 1438207016 in words is "one billion, four hundred thirty-eight million, two hundred seven thousand, sixteen".