238872451 has 4 divisors (see below), whose sum is σ = 239070592. Its totient is φ = 238674312.

The previous prime is 238872443. The next prime is 238872463. The reversal of 238872451 is 154278832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238872451 - 2³ = 238872443 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (238872421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97251 + ... + 99676.

It is an arithmetic number, because the mean of its divisors is an integer number (59767648).

Almost surely, 2^238872451 is an apocalyptic number.

238872451 is a deficient number, since it is larger than the sum of its proper divisors (198141).

238872451 is a wasteful number, since it uses less digits than its factorization.

238872451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198140.

The product of its digits is 107520, while the sum is 40.

The square root of 238872451 is about 15455.4990537349. The cubic root of 238872451 is about 620.4717628625.

The spelling of 238872451 in words is "two hundred thirty-eight million, eight hundred seventy-two thousand, four hundred fifty-one".