20742462 has 24 divisors (see below), whose sum is σ = 48399624. Its totient is φ = 6382224.

The previous prime is 20742461. The next prime is 20742479. The reversal of 20742462 is 26424702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20742461) 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, 44088 + ... + 44555.

It is an arithmetic number, because the mean of its divisors is an integer number (2016651).

Almost surely, 2^20742462 is an apocalyptic number.

20742462 is an abundant number, since it is smaller than the sum of its proper divisors (27657162).

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

20742462 is a wasteful number, since it uses less digits than its factorization.

20742462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88664 (or 88661 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 20742462 is about 4554.3893114226. The cubic root of 20742462 is about 274.7599536108.

The spelling of 20742462 in words is "twenty million, seven hundred forty-two thousand, four hundred sixty-two".