243070254 has 32 divisors (see below), whose sum is σ = 617322240. Its totient is φ = 69448536.

The previous prime is 243070241. The next prime is 243070277. The reversal of 243070254 is 452070342.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 321144 + ... + 321899.

It is an arithmetic number, because the mean of its divisors is an integer number (19291320).

Almost surely, 2^243070254 is an apocalyptic number.

243070254 is an abundant number, since it is smaller than the sum of its proper divisors (374251986).

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

243070254 is a wasteful number, since it uses less digits than its factorization.

243070254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643061 (or 643055 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 243070254 is about 15590.7105033735. The cubic root of 243070254 is about 624.0852786556.

The spelling of 243070254 in words is "two hundred forty-three million, seventy thousand, two hundred fifty-four".