20067996 has 48 divisors (see below), whose sum is σ = 50760864. Its totient is φ = 6134016.

The previous prime is 20067977. The next prime is 20067997. The reversal of 20067996 is 69976002.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20067997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30406 + ... + 31058.

It is an arithmetic number, because the mean of its divisors is an integer number (1057518).

Almost surely, 2^20067996 is an apocalyptic number.

20067996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20067996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25380432).

20067996 is an abundant number, since it is smaller than the sum of its proper divisors (30692868).

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

20067996 is a wasteful number, since it uses less digits than its factorization.

20067996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 20067996 is about 4479.7316883938. The cubic root of 20067996 is about 271.7490296060.

The spelling of 20067996 in words is "twenty million, sixty-seven thousand, nine hundred ninety-six".