20933472 has 48 divisors (see below), whose sum is σ = 62802432. Its totient is φ = 5980800.

The previous prime is 20933461. The next prime is 20933483. The reversal of 20933472 is 27433902.

It is an interprime number because it is at equal distance from previous prime (20933461) and next prime (20933483).

It is a tau number, because it is divible by the number of its divisors (48).

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, 14904 + ... + 16247.

It is an arithmetic number, because the mean of its divisors is an integer number (1308384).

Almost surely, 2^20933472 is an apocalyptic number.

It is an amenable number.

20933472 is an abundant number, since it is smaller than the sum of its proper divisors (41868960).

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

20933472 is a wasteful number, since it uses less digits than its factorization.

20933472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31171 (or 31163 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 20933472 is about 4575.3111369611. The cubic root of 20933472 is about 275.6007670449.

It can be divided in two parts, 2093 and 3472, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 20933472 in words is "twenty million, nine hundred thirty-three thousand, four hundred seventy-two".