1438788950 has 12 divisors (see below), whose sum is σ = 2676147540. Its totient is φ = 575515560.

The previous prime is 1438788947. The next prime is 1438788961. The reversal of 1438788950 is 598878341.

It is a super-2 number, since 2×1438788950² = 4140227285284205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1438788892 and 1438788901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14387840 + ... + 14387939.

It is an arithmetic number, because the mean of its divisors is an integer number (223012295).

Almost surely, 2^1438788950 is an apocalyptic number.

1438788950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1438788950 is a deficient number, since it is larger than the sum of its proper divisors (1237358590).

1438788950 is a wasteful number, since it uses less digits than its factorization.

1438788950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28775791 (or 28775786 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 1438788950 is about 37931.3715807905. The cubic root of 1438788950 is about 1128.9265787366.

The spelling of 1438788950 in words is "one billion, four hundred thirty-eight million, seven hundred eighty-eight thousand, nine hundred fifty".