420724735 has 16 divisors (see below), whose sum is σ = 508384800. Its totient is φ = 334247040.

The previous prime is 420724727. The next prime is 420724741. The reversal of 420724735 is 537427024.

It is not a de Polignac number, because 420724735 - 2³ = 420724727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420724735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804184 + ... + 804706.

It is an arithmetic number, because the mean of its divisors is an integer number (31774050).

Almost surely, 2^420724735 is an apocalyptic number.

420724735 is a deficient number, since it is larger than the sum of its proper divisors (87660065).

420724735 is a wasteful number, since it uses less digits than its factorization.

420724735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 420724735 is about 20511.5756342608. The cubic root of 420724735 is about 749.3177410333.

The spelling of 420724735 in words is "four hundred twenty million, seven hundred twenty-four thousand, seven hundred thirty-five".