1252412040 has 64 divisors (see below), whose sum is σ = 4098807360. Its totient is φ = 303614720.

The previous prime is 1252412033. The next prime is 1252412041. The reversal of 1252412040 is 402142521.

It is a junction number, because it is equal to n+sod(n) for n = 1252411998 and 1252412016.

It is not an unprimeable number, because it can be changed into a prime (1252412041) 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, 473079 + ... + 475718.

It is an arithmetic number, because the mean of its divisors is an integer number (64043865).

Almost surely, 2^1252412040 is an apocalyptic number.

1252412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252412040 is an abundant number, since it is smaller than the sum of its proper divisors (2846395320).

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

1252412040 is a wasteful number, since it uses less digits than its factorization.

1252412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948822 (or 948818 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1252412040 is about 35389.4340163840. The cubic root of 1252412040 is about 1077.9097775134.

Adding to 1252412040 its reverse (402142521), we get a palindrome (1654554561).

The spelling of 1252412040 in words is "one billion, two hundred fifty-two million, four hundred twelve thousand, forty".