20677376 has 54 divisors (see below), whose sum is σ = 43138620. Its totient is φ = 9888768.

The previous prime is 20677373. The next prime is 20677387. The reversal of 20677376 is 67377602.

It is not an unprimeable number, because it can be changed into a prime (20677373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350435 + ... + 350493.

Almost surely, 2^20677376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20677376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21569310).

20677376 is an abundant number, since it is smaller than the sum of its proper divisors (22461244).

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

20677376 is an frugal number, since it uses more digits than its factorization.

20677376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 20677376 is about 4547.2382827382. The cubic root of 20677376 is about 274.4722705712.

The spelling of 20677376 in words is "twenty million, six hundred seventy-seven thousand, three hundred seventy-six".