1242430455 has 32 divisors (see below), whose sum is σ = 2273209344. Its totient is φ = 567634176.

The previous prime is 1242430373. The next prime is 1242430457. The reversal of 1242430455 is 5540342421.

It is not a de Polignac number, because 1242430455 - 2¹⁶ = 1242364919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242430457) 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, 308062 + ... + 312068.

It is an arithmetic number, because the mean of its divisors is an integer number (71037792).

Almost surely, 2^1242430455 is an apocalyptic number.

1242430455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242430455 is a deficient number, since it is larger than the sum of its proper divisors (1030778889).

1242430455 is a wasteful number, since it uses less digits than its factorization.

1242430455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1242430455 is about 35248.1269715144. The cubic root of 1242430455 is about 1075.0385289958.

Adding to 1242430455 its reverse (5540342421), we get a palindrome (6782772876).

The spelling of 1242430455 in words is "one billion, two hundred forty-two million, four hundred thirty thousand, four hundred fifty-five".