31438614 has 16 divisors (see below), whose sum is σ = 63226800. Its totient is φ = 10421280.

The previous prime is 31438613. The next prime is 31438621. The reversal of 31438614 is 41683413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31438613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13389 + ... + 15560.

It is an arithmetic number, because the mean of its divisors is an integer number (3951675).

Almost surely, 2^31438614 is an apocalyptic number.

31438614 is an abundant number, since it is smaller than the sum of its proper divisors (31788186).

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

31438614 is a wasteful number, since it uses less digits than its factorization.

31438614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29135.

The product of its digits is 6912, while the sum is 30.

The square root of 31438614 is about 5607.0147137314. The cubic root of 31438614 is about 315.6126951253.

The spelling of 31438614 in words is "thirty-one million, four hundred thirty-eight thousand, six hundred fourteen".