423940026 has 16 divisors (see below), whose sum is σ = 856276128. Its totient is φ = 139914000.

The previous prime is 423940003. The next prime is 423940031. The reversal of 423940026 is 620049324.

It is a junction number, because it is equal to n+sod(n) for n = 423939975 and 423940002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349180 + ... + 350391.

It is an arithmetic number, because the mean of its divisors is an integer number (53517258).

Almost surely, 2^423940026 is an apocalyptic number.

423940026 is an abundant number, since it is smaller than the sum of its proper divisors (432336102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423940026 is a wasteful number, since it uses less digits than its factorization.

423940026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699677.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 423940026 is about 20589.8039330150. The cubic root of 423940026 is about 751.2217278718.

The spelling of 423940026 in words is "four hundred twenty-three million, nine hundred forty thousand, twenty-six".