20676480 has 192 divisors, whose sum is σ = 73256400. Its totient is φ = 4956160.

The previous prime is 20676463. The next prime is 20676493. The reversal of 20676480 is 8467602.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232276 + ... + 232364.

Almost surely, 2^20676480 is an apocalyptic number.

20676480 is a gapful number since it is divisible by the number (20) 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 20676480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36628200).

20676480 is an abundant number, since it is smaller than the sum of its proper divisors (52579920).

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

20676480 is a wasteful number, since it uses less digits than its factorization.

20676480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 20676480 is about 4547.1397603329. The cubic root of 20676480 is about 274.4683060013.

The spelling of 20676480 in words is "twenty million, six hundred seventy-six thousand, four hundred eighty".