243057450 has 48 divisors (see below), whose sum is σ = 606541536. Its totient is φ = 64411200.

The previous prime is 243057433. The next prime is 243057467. The reversal of 243057450 is 54750342.

It is an interprime number because it is at equal distance from previous prime (243057433) and next prime (243057467).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19480 + ... + 29420.

It is an arithmetic number, because the mean of its divisors is an integer number (12636282).

Almost surely, 2^243057450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243057450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303270768).

243057450 is an abundant number, since it is smaller than the sum of its proper divisors (363484086).

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

243057450 is a wasteful number, since it uses less digits than its factorization.

243057450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119 (or 10114 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 243057450 is about 15590.2998688287. The cubic root of 243057450 is about 624.0743203310.

The spelling of 243057450 in words is "two hundred forty-three million, fifty-seven thousand, four hundred fifty".