242629457 has 32 divisors (see below), whose sum is σ = 306270720. Its totient is φ = 187407360.

The previous prime is 242629447. The next prime is 242629459. The reversal of 242629457 is 754926242.

It is not a de Polignac number, because 242629457 - 2²⁴ = 225852241 is a prime.

It is a super-2 number, since 2×242629457² = 117738106808229698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242629459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576107 + ... + 576527.

It is an arithmetic number, because the mean of its divisors is an integer number (9570960).

Almost surely, 2^242629457 is an apocalyptic number.

It is an amenable number.

242629457 is a deficient number, since it is larger than the sum of its proper divisors (63641263).

242629457 is a wasteful number, since it uses less digits than its factorization.

242629457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 241920, while the sum is 41.

The square root of 242629457 is about 15576.5675615650. The cubic root of 242629457 is about 623.7078001659.

The spelling of 242629457 in words is "two hundred forty-two million, six hundred twenty-nine thousand, four hundred fifty-seven".