14931390 has 32 divisors (see below), whose sum is σ = 36126720. Its totient is φ = 3949344.

The previous prime is 14931377. The next prime is 14931401. The reversal of 14931390 is 9313941.

14931390 is nontrivially palindromic in base 9.

It is a super-3 number, since 3×14931390³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851 + ... + 5769.

It is an arithmetic number, because the mean of its divisors is an integer number (1128960).

Almost surely, 2^14931390 is an apocalyptic number.

14931390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14931390 is an abundant number, since it is smaller than the sum of its proper divisors (21195330).

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

14931390 is a wasteful number, since it uses less digits than its factorization.

14931390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 14931390 is about 3864.1156814982. The cubic root of 14931390 is about 246.2446175398.

The spelling of 14931390 in words is "fourteen million, nine hundred thirty-one thousand, three hundred ninety".