1252973658 has 32 divisors (see below), whose sum is σ = 2693975040. Its totient is φ = 387255600.

The previous prime is 1252973651. The next prime is 1252973671. The reversal of 1252973658 is 8563792521.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1252973651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111568 + ... + 122283.

It is an arithmetic number, because the mean of its divisors is an integer number (84186720).

Almost surely, 2^1252973658 is an apocalyptic number.

1252973658 is an abundant number, since it is smaller than the sum of its proper divisors (1441001382).

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

1252973658 is a wasteful number, since it uses less digits than its factorization.

1252973658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233922.

The product of its digits is 907200, while the sum is 48.

The square root of 1252973658 is about 35397.3679529990. The cubic root of 1252973658 is about 1078.0708754715.

The spelling of 1252973658 in words is "one billion, two hundred fifty-two million, nine hundred seventy-three thousand, six hundred fifty-eight".