1242662355 has 24 divisors (see below), whose sum is σ = 2349762480. Its totient is φ = 602502720.

The previous prime is 1242662341. The next prime is 1242662357. The reversal of 1242662355 is 5532662421.

1242662355 is a `hidden beast` number, since 1 + 2 + 4 + 26 + 623 + 5 + 5 = 666.

It is not a de Polignac number, because 1242662355 - 2⁷ = 1242662227 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1242662357) 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 in 23 ways as a sum of consecutive naturals, for example, 1254720 + ... + 1255709.

It is an arithmetic number, because the mean of its divisors is an integer number (97906770).

Almost surely, 2^1242662355 is an apocalyptic number.

1242662355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242662355 is a deficient number, since it is larger than the sum of its proper divisors (1107100125).

1242662355 is a wasteful number, since it uses less digits than its factorization.

1242662355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510451 (or 2510448 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 1242662355 is about 35251.4163545240. The cubic root of 1242662355 is about 1075.1054102513.

It can be divided in two parts, 124266 and 2355, that added together give a palindrome (126621).

The spelling of 1242662355 in words is "one billion, two hundred forty-two million, six hundred sixty-two thousand, three hundred fifty-five".