36420520 has 32 divisors (see below), whose sum is σ = 84774600. Its totient is φ = 14065408.

The previous prime is 36420437. The next prime is 36420533. The reversal of 36420520 is 2502463.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28366276 + 8054244 = 5326^2 + 2838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36420491 and 36420500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14539 + ... + 16858.

Almost surely, 2^36420520 is an apocalyptic number.

It is an amenable number.

36420520 is an abundant number, since it is smaller than the sum of its proper divisors (48354080).

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

36420520 is a wasteful number, since it uses less digits than its factorization.

36420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31437 (or 31433 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 36420520 is about 6034.9415904381. The cubic root of 36420520 is about 331.4734237328.

Adding to 36420520 its reverse (2502463), we get a palindrome (38922983).

The spelling of 36420520 in words is "thirty-six million, four hundred twenty thousand, five hundred twenty".