252741428 has 6 divisors (see below), whose sum is σ = 442297506. Its totient is φ = 126370712.

The previous prime is 252741407. The next prime is 252741451. The reversal of 252741428 is 824147252.

It can be written as a sum of positive squares in only one way, i.e., 192709924 + 60031504 = 13882^2 + 7748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31592675 + ... + 31592682.

It is an arithmetic number, because the mean of its divisors is an integer number (73716251).

Almost surely, 2^252741428 is an apocalyptic number.

It is an amenable number.

252741428 is a deficient number, since it is larger than the sum of its proper divisors (189556078).

252741428 is a wasteful number, since it uses less digits than its factorization.

252741428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63185361 (or 63185359 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 252741428 is about 15897.8435015571. The cubic root of 252741428 is about 632.2548143289.

The spelling of 252741428 in words is "two hundred fifty-two million, seven hundred forty-one thousand, four hundred twenty-eight".