19901364 has 48 divisors (see below), whose sum is σ = 53760000. Its totient is φ = 5612256.

The previous prime is 19901363. The next prime is 19901369. The reversal of 19901364 is 46310991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19901363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5137 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (1120000).

Almost surely, 2^19901364 is an apocalyptic number.

19901364 is a gapful number since it is divisible by the number (14) 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 19901364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26880000).

19901364 is an abundant number, since it is smaller than the sum of its proper divisors (33858636).

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

19901364 is a wasteful number, since it uses less digits than its factorization.

19901364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 3090 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 19901364 is about 4461.0944845408. The cubic root of 19901364 is about 270.9947939070.

The spelling of 19901364 in words is "nineteen million, nine hundred one thousand, three hundred sixty-four".