420036730 has 16 divisors (see below), whose sum is σ = 760596480. Its totient is φ = 167007952.

The previous prime is 420036709. The next prime is 420036737. The reversal of 420036730 is 37630024.

It is a junction number, because it is equal to n+sod(n) for n = 420036695 and 420036704.

It is not an unprimeable number, because it can be changed into a prime (420036737) 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 7 ways as a sum of consecutive naturals, for example, 124090 + ... + 127429.

It is an arithmetic number, because the mean of its divisors is an integer number (47537280).

Almost surely, 2^420036730 is an apocalyptic number.

420036730 is a deficient number, since it is larger than the sum of its proper divisors (340559750).

420036730 is a wasteful number, since it uses less digits than its factorization.

420036730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251693.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 420036730 is about 20494.7976325701. The cubic root of 420036730 is about 748.9090687429.

Adding to 420036730 its reverse (37630024), we get a palindrome (457666754).

The spelling of 420036730 in words is "four hundred twenty million, thirty-six thousand, seven hundred thirty".