242620406 has 8 divisors (see below), whose sum is σ = 415920720. Its totient is φ = 103980168.

The previous prime is 242620387. The next prime is 242620489. The reversal of 242620406 is 604026242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×242620406² = 117729322815209672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8665001 + ... + 8665028.

It is an arithmetic number, because the mean of its divisors is an integer number (51990090).

Almost surely, 2^242620406 is an apocalyptic number.

242620406 is a deficient number, since it is larger than the sum of its proper divisors (173300314).

242620406 is a wasteful number, since it uses less digits than its factorization.

242620406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330038.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 242620406 is about 15576.2770262987. The cubic root of 242620406 is about 623.7000445131.

Adding to 242620406 its reverse (604026242), we get a palindrome (846646648).

The spelling of 242620406 in words is "two hundred forty-two million, six hundred twenty thousand, four hundred six".