1253442306 has 16 divisors (see below), whose sum is σ = 2507277024. Its totient is φ = 417748704.

The previous prime is 1253442277. The next prime is 1253442367. The reversal of 1253442306 is 6032443521.

It is a super-2 number, since 2×1253442306² = 3142235228941195272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40246 + ... + 64238.

It is an arithmetic number, because the mean of its divisors is an integer number (156704814).

Almost surely, 2^1253442306 is an apocalyptic number.

1253442306 is an abundant number, since it is smaller than the sum of its proper divisors (1253834718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253442306 is a wasteful number, since it uses less digits than its factorization.

1253442306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32705.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1253442306 is about 35403.9871483425. The cubic root of 1253442306 is about 1078.2052685022.

Adding to 1253442306 its reverse (6032443521), we get a palindrome (7285885827).

The spelling of 1253442306 in words is "one billion, two hundred fifty-three million, four hundred forty-two thousand, three hundred six".