242500405 has 32 divisors (see below), whose sum is σ = 343641600. Its totient is φ = 160807680.

The previous prime is 242500397. The next prime is 242500441. The reversal of 242500405 is 504005242.

242500405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242500405 - 2³ = 242500397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257235 + ... + 258175.

It is an arithmetic number, because the mean of its divisors is an integer number (10738800).

Almost surely, 2^242500405 is an apocalyptic number.

It is an amenable number.

242500405 is a deficient number, since it is larger than the sum of its proper divisors (101141195).

242500405 is a wasteful number, since it uses less digits than its factorization.

242500405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 242500405 is about 15572.4245061583. The cubic root of 242500405 is about 623.5971993964.

Adding to 242500405 its reverse (504005242), we get a palindrome (746505647).

The spelling of 242500405 in words is "two hundred forty-two million, five hundred thousand, four hundred five".