243914000 has 80 divisors (see below), whose sum is σ = 643458816. Its totient is φ = 88688000.

The previous prime is 243913993. The next prime is 243914029. The reversal of 243914000 is 419342.

It is a tau number, because it is divible by the number of its divisors (80).

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, 16457 + ... + 27543.

Almost surely, 2^243914000 is an apocalyptic number.

243914000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243914000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321729408).

243914000 is an abundant number, since it is smaller than the sum of its proper divisors (399544816).

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

243914000 is a wasteful number, since it uses less digits than its factorization.

243914000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121 (or 11105 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 243914000 is about 15617.7463162903. The cubic root of 243914000 is about 624.8065534650.

The spelling of 243914000 in words is "two hundred forty-three million, nine hundred fourteen thousand".