20803772 has 36 divisors (see below), whose sum is σ = 40822488. Its totient is φ = 9266400.

The previous prime is 20803729. The next prime is 20803777. The reversal of 20803772 is 27730802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20803777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25247 + ... + 26057.

It is an arithmetic number, because the mean of its divisors is an integer number (1133958).

Almost surely, 2^20803772 is an apocalyptic number.

20803772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20803772 is a deficient number, since it is larger than the sum of its proper divisors (20018716).

20803772 is a wasteful number, since it uses less digits than its factorization.

20803772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 20803772 is about 4561.1152145062. The cubic root of 20803772 is about 275.0303966400.

The spelling of 20803772 in words is "twenty million, eight hundred three thousand, seven hundred seventy-two".