20458132 has 24 divisors (see below), whose sum is σ = 38001600. Its totient is φ = 9615936.

The previous prime is 20458129. The next prime is 20458181. The reversal of 20458132 is 23185402.

It is a junction number, because it is equal to n+sod(n) for n = 20458097 and 20458106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3544 + ... + 7312.

It is an arithmetic number, because the mean of its divisors is an integer number (1583400).

Almost surely, 2^20458132 is an apocalyptic number.

It is an amenable number.

20458132 is a deficient number, since it is larger than the sum of its proper divisors (17543468).

20458132 is a wasteful number, since it uses less digits than its factorization.

20458132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20458132 is about 4523.0666588057. The cubic root of 20458132 is about 273.4987372202.

The spelling of 20458132 in words is "twenty million, four hundred fifty-eight thousand, one hundred thirty-two".