20398496 has 24 divisors (see below), whose sum is σ = 41457024. Its totient is φ = 9869760.

The previous prime is 20398489. The next prime is 20398501. The reversal of 20398496 is 69489302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9290 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (1727376).

Almost surely, 2^20398496 is an apocalyptic number.

It is an amenable number.

20398496 is an abundant number, since it is smaller than the sum of its proper divisors (21058528).

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

20398496 is a wasteful number, since it uses less digits than its factorization.

20398496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604 (or 20596 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 20398496 is about 4516.4694175871. The cubic root of 20398496 is about 273.2327265405.

The spelling of 20398496 in words is "twenty million, three hundred ninety-eight thousand, four hundred ninety-six".