21296496 has 40 divisors (see below), whose sum is σ = 59249680. Its totient is φ = 6552576.

The previous prime is 21296491. The next prime is 21296501. The reversal of 21296496 is 69469212.

It is an interprime number because it is at equal distance from previous prime (21296491) and next prime (21296501).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21296491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16441 + ... + 17688.

It is an arithmetic number, because the mean of its divisors is an integer number (1481242).

Almost surely, 2^21296496 is an apocalyptic number.

21296496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21296496 is an abundant number, since it is smaller than the sum of its proper divisors (37953184).

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

21296496 is a wasteful number, since it uses less digits than its factorization.

21296496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34153 (or 34147 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 21296496 is about 4614.8126722544. The cubic root of 21296496 is about 277.1847828914.

The spelling of 21296496 in words is "twenty-one million, two hundred ninety-six thousand, four hundred ninety-six".