19752428 has 12 divisors (see below), whose sum is σ = 34604472. Its totient is φ = 9865440.

The previous prime is 19752427. The next prime is 19752431. The reversal of 19752428 is 82425791.

It is a junction number, because it is equal to n+sod(n) for n = 19752391 and 19752400.

It is not an unprimeable number, because it can be changed into a prime (19752427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (2883706).

Almost surely, 2^19752428 is an apocalyptic number.

It is an amenable number.

19752428 is a deficient number, since it is larger than the sum of its proper divisors (14852044).

19752428 is a wasteful number, since it uses less digits than its factorization.

19752428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5390 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 19752428 is about 4444.3703716050. The cubic root of 19752428 is about 270.3170851773.

It can be divided in two parts, 197 and 52428, that added together give a palindrome (52625).

The spelling of 19752428 in words is "nineteen million, seven hundred fifty-two thousand, four hundred twenty-eight".