20461528 has 8 divisors (see below), whose sum is σ = 38365380. Its totient is φ = 10230760.

The previous prime is 20461517. The next prime is 20461541. The reversal of 20461528 is 82516402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20461496 and 20461505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278838 + ... + 1278853.

Almost surely, 2^20461528 is an apocalyptic number.

It is an amenable number.

20461528 is a deficient number, since it is larger than the sum of its proper divisors (17903852).

20461528 is a wasteful number, since it uses less digits than its factorization.

20461528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557697 (or 2557693 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 20461528 is about 4523.4420522430. The cubic root of 20461528 is about 273.5138697573.

The spelling of 20461528 in words is "twenty million, four hundred sixty-one thousand, five hundred twenty-eight".