431216 has 10 divisors (see below), whose sum is σ = 835512. Its totient is φ = 215600.

The previous prime is 431213. The next prime is 431219. The reversal of 431216 is 612134.

It is an interprime number because it is at equal distance from previous prime (431213) and next prime (431219).

It is a junction number, because it is equal to n+sod(n) for n = 431194 and 431203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13460 + ... + 13491.

2⁴³¹²¹⁶ is an apocalyptic number.

It is an amenable number.

431216 is a deficient number, since it is larger than the sum of its proper divisors (404296).

431216 is a wasteful number, since it uses less digits than its factorization.

431216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26959 (or 26953 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 431216 is about 656.6703891603. The cubic root of 431216 is about 75.5495048339.

It can be divided in two parts, 431 and 216, that multiplied together give a triangular number (93096 = T₄₃₁).

The spelling of 431216 in words is "four hundred thirty-one thousand, two hundred sixteen".