238977480 has 128 divisors (see below), whose sum is σ = 831098880. Its totient is φ = 53840640.

The previous prime is 238977461. The next prime is 238977491. The reversal of 238977480 is 84779832.

It is a super-2 number, since 2×238977480² = 114220471894300800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57637 + ... + 61643.

It is an arithmetic number, because the mean of its divisors is an integer number (6492960).

Almost surely, 2^238977480 is an apocalyptic number.

238977480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238977480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415549440).

238977480 is an abundant number, since it is smaller than the sum of its proper divisors (592121400).

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

238977480 is a wasteful number, since it uses less digits than its factorization.

238977480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 238977480 is about 15458.8964677302. The cubic root of 238977480 is about 620.5626872306.

The spelling of 238977480 in words is "two hundred thirty-eight million, nine hundred seventy-seven thousand, four hundred eighty".