238426747 has 8 divisors (see below), whose sum is σ = 258204240. Its totient is φ = 218854560.

The previous prime is 238426739. The next prime is 238426789. The reversal of 238426747 is 747624832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238426747 - 2³ = 238426739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238420747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48904 + ... + 53557.

It is an arithmetic number, because the mean of its divisors is an integer number (32275530).

Almost surely, 2^238426747 is an apocalyptic number.

238426747 is a deficient number, since it is larger than the sum of its proper divisors (19777493).

238426747 is a wasteful number, since it uses less digits than its factorization.

238426747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102653.

The product of its digits is 451584, while the sum is 43.

The square root of 238426747 is about 15441.0733759023. The cubic root of 238426747 is about 620.0856168619.

The spelling of 238426747 in words is "two hundred thirty-eight million, four hundred twenty-six thousand, seven hundred forty-seven".