20361478 has 8 divisors (see below), whose sum is σ = 32338872. Its totient is φ = 9581856.

The previous prime is 20361469. The next prime is 20361479. The reversal of 20361478 is 87416302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20361479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299400 + ... + 299467.

It is an arithmetic number, because the mean of its divisors is an integer number (4042359).

Almost surely, 2^20361478 is an apocalyptic number.

20361478 is a deficient number, since it is larger than the sum of its proper divisors (11977394).

20361478 is a wasteful number, since it uses less digits than its factorization.

20361478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598886.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20361478 is about 4512.3694440948. The cubic root of 20361478 is about 273.0673441897.

The spelling of 20361478 in words is "twenty million, three hundred sixty-one thousand, four hundred seventy-eight".