1252624340 has 24 divisors (see below), whose sum is σ = 2869648992. Its totient is φ = 455499680.

The previous prime is 1252624337. The next prime is 1252624349. The reversal of 1252624340 is 434262521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252624349) 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, 2846654 + ... + 2847093.

It is an arithmetic number, because the mean of its divisors is an integer number (119568708).

Almost surely, 2^1252624340 is an apocalyptic number.

1252624340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252624340 is an abundant number, since it is smaller than the sum of its proper divisors (1617024652).

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

1252624340 is a wasteful number, since it uses less digits than its factorization.

1252624340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693767 (or 5693765 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1252624340 is about 35392.4333721207. The cubic root of 1252624340 is about 1077.9706806106.

Adding to 1252624340 its reverse (434262521), we get a palindrome (1686886861).

The spelling of 1252624340 in words is "one billion, two hundred fifty-two million, six hundred twenty-four thousand, three hundred forty".