1438894748 has 12 divisors (see below), whose sum is σ = 2518333440. Its totient is φ = 719370912.

The previous prime is 1438894741. The next prime is 1438894763. The reversal of 1438894748 is 8474988341.

It is a junction number, because it is equal to n+sod(n) for n = 1438894693 and 1438894702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438894741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56165 + ... + 77667.

It is an arithmetic number, because the mean of its divisors is an integer number (209861120).

Almost surely, 2^1438894748 is an apocalyptic number.

It is an amenable number.

1438894748 is a deficient number, since it is larger than the sum of its proper divisors (1079438692).

1438894748 is a wasteful number, since it uses less digits than its factorization.

1438894748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38236 (or 38234 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 1438894748 is about 37932.7661527603. The cubic root of 1438894748 is about 1128.9542490554.

The spelling of 1438894748 in words is "one billion, four hundred thirty-eight million, eight hundred ninety-four thousand, seven hundred forty-eight".