420537049 has 3 divisors (see below), whose sum is σ = 420557557. Its totient is φ = 420516542.

The previous prime is 420537043. The next prime is 420537053. The reversal of 420537049 is 940735024.

The square root of 420537049 is 20507.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 420537049 - 2⁵ = 420537017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420537043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10254 + ... + 30760.

Almost surely, 2^420537049 is an apocalyptic number.

420537049 is the 20507-th square number.

420537049 is the 10254-th centered octagonal number.

It is an amenable number.

420537049 is a deficient number, since it is larger than the sum of its proper divisors (20508).

420537049 is an frugal number, since it uses more digits than its factorization.

420537049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41014 (or 20507 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The cubic root of 420537049 is about 749.2063004992.

The spelling of 420537049 in words is "four hundred twenty million, five hundred thirty-seven thousand, forty-nine".