238770455 has 16 divisors (see below), whose sum is σ = 357225984. Its totient is φ = 148843680.

The previous prime is 238770451. The next prime is 238770503. The reversal of 238770455 is 554077832.

It is not a de Polignac number, because 238770455 - 2² = 238770451 is a prime.

It is a super-2 number, since 2×238770455² = 114022660361814050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238770451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309707 + ... + 310476.

It is an arithmetic number, because the mean of its divisors is an integer number (22326624).

Almost surely, 2^238770455 is an apocalyptic number.

238770455 is a deficient number, since it is larger than the sum of its proper divisors (118455529).

238770455 is a wasteful number, since it uses less digits than its factorization.

238770455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620206.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 238770455 is about 15452.1990344417. The cubic root of 238770455 is about 620.3834386722.

The spelling of 238770455 in words is "two hundred thirty-eight million, seven hundred seventy thousand, four hundred fifty-five".