252406979 has 8 divisors (see below), whose sum is σ = 278080560. Its totient is φ = 227188000.

The previous prime is 252406969. The next prime is 252407003. The reversal of 252406979 is 979604252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252406979 - 2¹² = 252402883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252406949) 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, 112484 + ... + 114705.

It is an arithmetic number, because the mean of its divisors is an integer number (34760070).

Almost surely, 2^252406979 is an apocalyptic number.

252406979 is a deficient number, since it is larger than the sum of its proper divisors (25673581).

252406979 is a wasteful number, since it uses less digits than its factorization.

252406979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227301.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 252406979 is about 15887.3213286570. The cubic root of 252406979 is about 631.9758067369.

The spelling of 252406979 in words is "two hundred fifty-two million, four hundred six thousand, nine hundred seventy-nine".