20491462 has 16 divisors (see below), whose sum is σ = 32454000. Its totient is φ = 9676800.

The previous prime is 20491453. The next prime is 20491469. The reversal of 20491462 is 26419402.

It is a self number, because there is not a number n which added to its sum of digits gives 20491462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20491469) 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, 16462 + ... + 17662.

It is an arithmetic number, because the mean of its divisors is an integer number (2028375).

Almost surely, 2^20491462 is an apocalyptic number.

20491462 is a deficient number, since it is larger than the sum of its proper divisors (11962538).

20491462 is a wasteful number, since it uses less digits than its factorization.

20491462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20491462 is about 4526.7496065058. The cubic root of 20491462 is about 273.6471829500.

The spelling of 20491462 in words is "twenty million, four hundred ninety-one thousand, four hundred sixty-two".