20860476 has 72 divisors (see below), whose sum is σ = 60999120. Its totient is φ = 5499648.

The previous prime is 20860459. The next prime is 20860493. The reversal of 20860476 is 67406802.

It is an interprime number because it is at equal distance from previous prime (20860459) and next prime (20860493).

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, 6280 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (847210).

Almost surely, 2^20860476 is an apocalyptic number.

20860476 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 20860476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30499560).

20860476 is an abundant number, since it is smaller than the sum of its proper divisors (40138644).

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

20860476 is a wasteful number, since it uses less digits than its factorization.

20860476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763 (or 2754 counting only the distinct ones).

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

The square root of 20860476 is about 4567.3270082183. The cubic root of 20860476 is about 275.2800496973.

The spelling of 20860476 in words is "twenty million, eight hundred sixty thousand, four hundred seventy-six".