243150388 has 48 divisors (see below), whose sum is σ = 506338560. Its totient is φ = 101021184.

The previous prime is 243150373. The next prime is 243150389. The reversal of 243150388 is 883051342.

It is a happy number.

It is a super-2 number, since 2×243150388² = 118244222369101088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243150389) 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, 14353 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (10548720).

Almost surely, 2^243150388 is an apocalyptic number.

It is an amenable number.

243150388 is an abundant number, since it is smaller than the sum of its proper divisors (263188172).

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

243150388 is a wasteful number, since it uses less digits than its factorization.

243150388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12016 (or 12014 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 243150388 is about 15593.2802193766. The cubic root of 243150388 is about 624.1538527326.

The spelling of 243150388 in words is "two hundred forty-three million, one hundred fifty thousand, three hundred eighty-eight".