231378412 has 12 divisors (see below), whose sum is σ = 411775560. Its totient is φ = 113728256.

The previous prime is 231378397. The next prime is 231378463. The reversal of 231378412 is 214873132.

It is a super-3 number, since 3×231378412³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489973 + ... + 490444.

It is an arithmetic number, because the mean of its divisors is an integer number (34314630).

Almost surely, 2^231378412 is an apocalyptic number.

It is an amenable number.

231378412 is a deficient number, since it is larger than the sum of its proper divisors (180397148).

231378412 is a wasteful number, since it uses less digits than its factorization.

231378412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980480 (or 980478 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 231378412 is about 15211.1279003235. The cubic root of 231378412 is about 613.9141055525.

The spelling of 231378412 in words is "two hundred thirty-one million, three hundred seventy-eight thousand, four hundred twelve".