20672248 has 8 divisors (see below), whose sum is σ = 38760480. Its totient is φ = 10336120.

The previous prime is 20672237. The next prime is 20672261. The reversal of 20672248 is 84227602.

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

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, 1292008 + ... + 1292023.

It is an arithmetic number, because the mean of its divisors is an integer number (4845060).

Almost surely, 2^20672248 is an apocalyptic number.

It is an amenable number.

20672248 is a deficient number, since it is larger than the sum of its proper divisors (18088232).

20672248 is a wasteful number, since it uses less digits than its factorization.

20672248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584037 (or 2584033 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20672248 is about 4546.6743890453. The cubic root of 20672248 is about 274.4495789399.

The spelling of 20672248 in words is "twenty million, six hundred seventy-two thousand, two hundred forty-eight".