242487403 has 2 divisors, whose sum is σ = 242487404. Its totient is φ = 242487402.

The previous prime is 242487391. The next prime is 242487409. The reversal of 242487403 is 304784242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242487403 - 2⁹ = 242486891 is a prime.

It is a super-2 number, since 2×242487403² = 117600281227368818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242487409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121243701 + 121243702.

It is an arithmetic number, because the mean of its divisors is an integer number (121243702).

Almost surely, 2^242487403 is an apocalyptic number.

242487403 is a deficient number, since it is larger than the sum of its proper divisors (1).

242487403 is an equidigital number, since it uses as much as digits as its factorization.

242487403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 34.

The square root of 242487403 is about 15572.0070318505. The cubic root of 242487403 is about 623.5860541838.

The spelling of 242487403 in words is "two hundred forty-two million, four hundred eighty-seven thousand, four hundred three".