1252406798 has 16 divisors (see below), whose sum is σ = 1899881136. Its totient is φ = 619140480.

The previous prime is 1252406797. The next prime is 1252406849. The reversal of 1252406798 is 8976042521.

It is a happy number.

It is a super-2 number, since 2×1252406798² = 3137045575353225608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252406797) 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, 88565 + ... + 101727.

It is an arithmetic number, because the mean of its divisors is an integer number (118742571).

Almost surely, 2^1252406798 is an apocalyptic number.

1252406798 is a deficient number, since it is larger than the sum of its proper divisors (647474338).

1252406798 is a wasteful number, since it uses less digits than its factorization.

1252406798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13699.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1252406798 is about 35389.3599546530. The cubic root of 1252406798 is about 1077.9082736391.

The spelling of 1252406798 in words is "one billion, two hundred fifty-two million, four hundred six thousand, seven hundred ninety-eight".