242406625 has 8 divisors (see below), whose sum is σ = 302523624. Its totient is φ = 193925200.

The previous prime is 242406607. The next prime is 242406629. The reversal of 242406625 is 526604242.

It can be written as a sum of positive squares in 4 ways, for example, as 45481536 + 196925089 = 6744^2 + 14033^2 .

It is not a de Polignac number, because 242406625 - 2⁹ = 242406113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242406629) 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, 969502 + ... + 969751.

It is an arithmetic number, because the mean of its divisors is an integer number (37815453).

Almost surely, 2^242406625 is an apocalyptic number.

242406625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242406625 is a deficient number, since it is larger than the sum of its proper divisors (60116999).

242406625 is an equidigital number, since it uses as much as digits as its factorization.

242406625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939268 (or 1939258 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 242406625 is about 15569.4131231720. The cubic root of 242406625 is about 623.5168029869.

The spelling of 242406625 in words is "two hundred forty-two million, four hundred six thousand, six hundred twenty-five".