20754630 has 128 divisors (see below), whose sum is σ = 61165440. Its totient is φ = 5038848.

The previous prime is 20754623. The next prime is 20754653. The reversal of 20754630 is 3645702.

It is a happy number.

20754630 is a `hidden beast` number, since 20 + 7 + 5 + 4 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 20754594 and 20754603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 284274 + ... + 284346.

It is an arithmetic number, because the mean of its divisors is an integer number (477855).

Almost surely, 2^20754630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20754630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30582720).

20754630 is an abundant number, since it is smaller than the sum of its proper divisors (40410810).

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

20754630 is an equidigital number, since it uses as much as digits as its factorization.

20754630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20754630 is about 4555.7249697496. The cubic root of 20754630 is about 274.8136699212.

The spelling of 20754630 in words is "twenty million, seven hundred fifty-four thousand, six hundred thirty".