423019930 has 16 divisors (see below), whose sum is σ = 762613704. Its totient is φ = 168946240.

The previous prime is 423019903. The next prime is 423019931. The reversal of 423019930 is 39910324.

It can be written as a sum of positive squares in 4 ways, for example, as 266244489 + 156775441 = 16317^2 + 12521^2 .

It is a super-2 number, since 2×423019930² = 357891722354409800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423019892 and 423019901.

It is not an unprimeable number, because it can be changed into a prime (423019931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25861 + ... + 38920.

Almost surely, 2^423019930 is an apocalyptic number.

423019930 is a deficient number, since it is larger than the sum of its proper divisors (339593774).

423019930 is a wasteful number, since it uses less digits than its factorization.

423019930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65441.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 423019930 is about 20567.4483103763. The cubic root of 423019930 is about 750.6778641860.

The spelling of 423019930 in words is "four hundred twenty-three million, nineteen thousand, nine hundred thirty".