1626252012 has 192 divisors, whose sum is σ = 5292564480. Its totient is φ = 419515200.

The previous prime is 1626251999. The next prime is 1626252041. The reversal of 1626252012 is 2102526261.

1626252012 is a `hidden beast` number, since 1 + 6 + 2 + 625 + 20 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1388187 + ... + 1389357.

It is an arithmetic number, because the mean of its divisors is an integer number (27565440).

Almost surely, 2^1626252012 is an apocalyptic number.

1626252012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1626252012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646282240).

1626252012 is an abundant number, since it is smaller than the sum of its proper divisors (3666312468).

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

1626252012 is a wasteful number, since it uses less digits than its factorization.

1626252012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1626252012 is about 40326.8150490465. The cubic root of 1626252012 is about 1175.9692047329.

Adding to 1626252012 its reverse (2102526261), we get a palindrome (3728778273).

The spelling of 1626252012 in words is "one billion, six hundred twenty-six million, two hundred fifty-two thousand, twelve".