19970580 has 96 divisors (see below), whose sum is σ = 67689216. Its totient is φ = 4294656.

The previous prime is 19970569. The next prime is 19970593. The reversal of 19970580 is 8507991.

It is a happy number.

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, 5742 + ... + 8538.

It is an arithmetic number, because the mean of its divisors is an integer number (705096).

Almost surely, 2^19970580 is an apocalyptic number.

19970580 is a gapful number since it is divisible by the number (10) 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 19970580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33844608).

19970580 is an abundant number, since it is smaller than the sum of its proper divisors (47718636).

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

19970580 is a wasteful number, since it uses less digits than its factorization.

19970580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 19970580 is about 4468.8454884903. The cubic root of 19970580 is about 271.3085994004.

The spelling of 19970580 in words is "nineteen million, nine hundred seventy thousand, five hundred eighty".