243429976 has 64 divisors (see below), whose sum is σ = 505440000. Its totient is φ = 109397376.

The previous prime is 243429971. The next prime is 243430037. The reversal of 243429976 is 679924342.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243429971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625590 + ... + 625978.

It is an arithmetic number, because the mean of its divisors is an integer number (7897500).

Almost surely, 2^243429976 is an apocalyptic number.

It is an amenable number.

243429976 is an abundant number, since it is smaller than the sum of its proper divisors (262010024).

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

243429976 is a wasteful number, since it uses less digits than its factorization.

243429976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 243429976 is about 15602.2426593102. The cubic root of 243429976 is about 624.3929901734.

The spelling of 243429976 in words is "two hundred forty-three million, four hundred twenty-nine thousand, nine hundred seventy-six".