16243450 has 12 divisors (see below), whose sum is σ = 30212910. Its totient is φ = 6497360.

The previous prime is 16243441. The next prime is 16243453. The reversal of 16243450 is 5434261.

It can be written as a sum of positive squares in 3 ways, for example, as 14737921 + 1505529 = 3839^2 + 1227^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (16243453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162385 + ... + 162484.

Almost surely, 2^16243450 is an apocalyptic number.

16243450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16243450 is a deficient number, since it is larger than the sum of its proper divisors (13969460).

16243450 is a wasteful number, since it uses less digits than its factorization.

16243450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324881 (or 324876 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 16243450 is about 4030.3163647535. The cubic root of 16243450 is about 253.2558146170.

The spelling of 16243450 in words is "sixteen million, two hundred forty-three thousand, four hundred fifty".