1252616478 has 32 divisors (see below), whose sum is σ = 2631744000. Its totient is φ = 396698016.

The previous prime is 1252616467. The next prime is 1252616479. The reversal of 1252616478 is 8746162521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252616479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9898 + ... + 51021.

It is an arithmetic number, because the mean of its divisors is an integer number (82242000).

Almost surely, 2^1252616478 is an apocalyptic number.

1252616478 is an abundant number, since it is smaller than the sum of its proper divisors (1379127522).

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

1252616478 is a wasteful number, since it uses less digits than its factorization.

1252616478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61096.

The product of its digits is 161280, while the sum is 42.

The square root of 1252616478 is about 35392.3223030080. The cubic root of 1252616478 is about 1077.9684253393.

Adding to 1252616478 its reverse (8746162521), we get a palindrome (9998778999).

The spelling of 1252616478 in words is "one billion, two hundred fifty-two million, six hundred sixteen thousand, four hundred seventy-eight".