20361042 has 24 divisors (see below), whose sum is σ = 47509644. Its totient is φ = 6264864.

The previous prime is 20361037. The next prime is 20361101. The reversal of 20361042 is 24016302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18481401 + 1879641 = 4299^2 + 1371^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43273 + ... + 43740.

Almost surely, 2^20361042 is an apocalyptic number.

20361042 is an abundant number, since it is smaller than the sum of its proper divisors (27148602).

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

20361042 is a wasteful number, since it uses less digits than its factorization.

20361042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87034 (or 87031 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20361042 is about 4512.3211321891. The cubic root of 20361042 is about 273.0653951135.

Adding to 20361042 its reverse (24016302), we get a palindrome (44377344).

The spelling of 20361042 in words is "twenty million, three hundred sixty-one thousand, forty-two".