420747349 has 32 divisors (see below), whose sum is σ = 495175680. Its totient is φ = 353707200.

The previous prime is 420747347. The next prime is 420747359. The reversal of 420747349 is 943747024.

It is not a de Polignac number, because 420747349 - 2¹ = 420747347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420747347) 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 31 ways as a sum of consecutive naturals, for example, 1059619 + ... + 1060015.

It is an arithmetic number, because the mean of its divisors is an integer number (15474240).

Almost surely, 2^420747349 is an apocalyptic number.

It is an amenable number.

420747349 is a deficient number, since it is larger than the sum of its proper divisors (74428331).

420747349 is a wasteful number, since it uses less digits than its factorization.

420747349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 420747349 is about 20512.1268765577. The cubic root of 420747349 is about 749.3311660959.

The spelling of 420747349 in words is "four hundred twenty million, seven hundred forty-seven thousand, three hundred forty-nine".