20074380 has 96 divisors (see below), whose sum is σ = 59270400. Its totient is φ = 5069568.

The previous prime is 20074367. The next prime is 20074427. The reversal of 20074380 is 8347002.

It is a self number, because there is not a number n which added to its sum of digits gives 20074380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144351 + ... + 144489.

It is an arithmetic number, because the mean of its divisors is an integer number (617400).

Almost surely, 2^20074380 is an apocalyptic number.

20074380 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 20074380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29635200).

20074380 is an abundant number, since it is smaller than the sum of its proper divisors (39196020).

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

20074380 is a wasteful number, since it uses less digits than its factorization.

20074380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20074380 is about 4480.4441744095. Note that the first 3 decimals coincide. The cubic root of 20074380 is about 271.7778426786. Note that the first 3 decimals are identical.

The spelling of 20074380 in words is "twenty million, seventy-four thousand, three hundred eighty".