238906480 has 40 divisors (see below), whose sum is σ = 563294304. Its totient is φ = 94214400.

The previous prime is 238906477. The next prime is 238906483. The reversal of 238906480 is 84609832.

It is an interprime number because it is at equal distance from previous prime (238906477) and next prime (238906483).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×238906480³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238906483) 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, 15351 + ... + 26710.

Almost surely, 2^238906480 is an apocalyptic number.

238906480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238906480 is an abundant number, since it is smaller than the sum of its proper divisors (324387824).

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

238906480 is a wasteful number, since it uses less digits than its factorization.

238906480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42145 (or 42139 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 238906480 is about 15456.5998848388. The cubic root of 238906480 is about 620.5012249332.

The spelling of 238906480 in words is "two hundred thirty-eight million, nine hundred six thousand, four hundred eighty".