19497396 has 48 divisors (see below), whose sum is σ = 47476800. Its totient is φ = 6220032.

The previous prime is 19497377. The next prime is 19497397. The reversal of 19497396 is 69379491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19497397) 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, 62136 + ... + 62448.

It is an arithmetic number, because the mean of its divisors is an integer number (989100).

Almost surely, 2^19497396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19497396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23738400).

19497396 is an abundant number, since it is smaller than the sum of its proper divisors (27979404).

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

19497396 is a wasteful number, since it uses less digits than its factorization.

19497396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 19497396 is about 4415.5855783803. The cubic root of 19497396 is about 269.1486489722.

The spelling of 19497396 in words is "nineteen million, four hundred ninety-seven thousand, three hundred ninety-six".