19962240 has 128 divisors (see below), whose sum is σ = 65581920. Its totient is φ = 5160960.

The previous prime is 19962211. The next prime is 19962251. The reversal of 19962240 is 4226991.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70900 + ... + 71180.

Almost surely, 2^19962240 is an apocalyptic number.

19962240 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 19962240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32790960).

19962240 is an abundant number, since it is smaller than the sum of its proper divisors (45619680).

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

19962240 is a wasteful number, since it uses less digits than its factorization.

19962240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 19962240 is about 4467.9122641341. The cubic root of 19962240 is about 271.2708266906.

It can be divided in two parts, 19962 and 240, that added together give a palindrome (20202).

The spelling of 19962240 in words is "nineteen million, nine hundred sixty-two thousand, two hundred forty".