31438214 has 8 divisors (see below), whose sum is σ = 47203968. Its totient is φ = 15703560.

The previous prime is 31438213. The next prime is 31438223. The reversal of 31438214 is 41283413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31438214² = 1976722599019592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31438213) 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, 5057 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (5900496).

Almost surely, 2^31438214 is an apocalyptic number.

31438214 is a deficient number, since it is larger than the sum of its proper divisors (15765754).

31438214 is a wasteful number, since it uses less digits than its factorization.

31438214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15550.

The product of its digits is 2304, while the sum is 26.

The square root of 31438214 is about 5606.9790440129. The cubic root of 31438214 is about 315.6113565844.

The spelling of 31438214 in words is "thirty-one million, four hundred thirty-eight thousand, two hundred fourteen".