1438567212 has 18 divisors (see below), whose sum is σ = 3356963428. Its totient is φ = 479478608.

The previous prime is 1438567201. The next prime is 1438567231. The reversal of 1438567212 is 2127658341.

It is a super-3 number, since 3×1438567212³ (a number of 28 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 125914 + ... + 136862.

Almost surely, 2^1438567212 is an apocalyptic number.

1438567212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1438567212 is an abundant number, since it is smaller than the sum of its proper divisors (1918396216).

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

1438567212 is an frugal number, since it uses more digits than its factorization.

1438567212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21905 (or 10954 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 1438567212 is about 37928.4485841433. The cubic root of 1438567212 is about 1128.8685811680.

The spelling of 1438567212 in words is "one billion, four hundred thirty-eight million, five hundred sixty-seven thousand, two hundred twelve".