20740468 has 36 divisors (see below), whose sum is σ = 42359520. Its totient is φ = 8703936.

The previous prime is 20740463. The next prime is 20740469. The reversal of 20740468 is 86404702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149143 + ... + 149281.

Almost surely, 2^20740468 is an apocalyptic number.

20740468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20740468 is an abundant number, since it is smaller than the sum of its proper divisors (21619052).

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

20740468 is a wasteful number, since it uses less digits than its factorization.

20740468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20740468 is about 4554.1703964608. The cubic root of 20740468 is about 274.7511489841.

The spelling of 20740468 in words is "twenty million, seven hundred forty thousand, four hundred sixty-eight".