20346372 has 18 divisors (see below), whose sum is σ = 51431198. Its totient is φ = 6782112.

The previous prime is 20346343. The next prime is 20346383. The reversal of 20346372 is 27364302.

20346372 is a `hidden beast` number, since 20 + 3 + 4 + 637 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 5089536 = 3906^2 + 2256^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282553 + ... + 282624.

Almost surely, 2^20346372 is an apocalyptic number.

It is an amenable number.

20346372 is an abundant number, since it is smaller than the sum of its proper divisors (31084826).

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

20346372 is a wasteful number, since it uses less digits than its factorization.

20346372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565187 (or 565182 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 20346372 is about 4510.6952900856. The cubic root of 20346372 is about 272.9997987359. Note that the first 3 decimals are identical.

The spelling of 20346372 in words is "twenty million, three hundred forty-six thousand, three hundred seventy-two".