238987154 has 16 divisors (see below), whose sum is σ = 409909248. Its totient is φ = 102368832.

The previous prime is 238987141. The next prime is 238987159. The reversal of 238987154 is 451789832.

It is a happy number.

It is a super-2 number, since 2×238987154² = 114229719554039432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238987099 and 238987108.

It is not an unprimeable number, because it can be changed into a prime (238987159) 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, 34442 + ... + 40794.

It is an arithmetic number, because the mean of its divisors is an integer number (25619328).

Almost surely, 2^238987154 is an apocalyptic number.

238987154 is a deficient number, since it is larger than the sum of its proper divisors (170922094).

238987154 is a wasteful number, since it uses less digits than its factorization.

238987154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049.

The product of its digits is 483840, while the sum is 47.

The square root of 238987154 is about 15459.2093588256. The cubic root of 238987154 is about 620.5710607427.

The spelling of 238987154 in words is "two hundred thirty-eight million, nine hundred eighty-seven thousand, one hundred fifty-four".