252646434 has 96 divisors (see below), whose sum is σ = 591851520. Its totient is φ = 77728896.

The previous prime is 252646423. The next prime is 252646447. The reversal of 252646434 is 434646252.

252646434 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 4 + 643 + 4 = 666.

It is a super-2 number, since 2×252646434² = 127660441225832712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1989279 + ... + 1989405.

It is an arithmetic number, because the mean of its divisors is an integer number (6165120).

Almost surely, 2^252646434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252646434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295925760).

252646434 is an abundant number, since it is smaller than the sum of its proper divisors (339205086).

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

252646434 is a wasteful number, since it uses less digits than its factorization.

252646434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 301 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 252646434 is about 15894.8555828608. The cubic root of 252646434 is about 632.1755924663.

The spelling of 252646434 in words is "two hundred fifty-two million, six hundred forty-six thousand, four hundred thirty-four".