1242307270 has 16 divisors (see below), whose sum is σ = 2237563440. Its totient is φ = 496609504.

The previous prime is 1242307219. The next prime is 1242307277. The reversal of 1242307270 is 727032421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242307277) 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, 22177 + ... + 54556.

It is an arithmetic number, because the mean of its divisors is an integer number (139847715).

Almost surely, 2^1242307270 is an apocalyptic number.

1242307270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242307270 is a deficient number, since it is larger than the sum of its proper divisors (995256170).

1242307270 is a wasteful number, since it uses less digits than its factorization.

1242307270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78359.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 1242307270 is about 35246.3795303858. The cubic root of 1242307270 is about 1075.0029983691.

Adding to 1242307270 its reverse (727032421), we get a palindrome (1969339691).

The spelling of 1242307270 in words is "one billion, two hundred forty-two million, three hundred seven thousand, two hundred seventy".