421240326 has 16 divisors (see below), whose sum is σ = 907287024. Its totient is φ = 129612384.

The previous prime is 421240289. The next prime is 421240327. The reversal of 421240326 is 623042124.

It is a junction number, because it is equal to n+sod(n) for n = 421240296 and 421240305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421240327) 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, 2700181 + ... + 2700336.

It is an arithmetic number, because the mean of its divisors is an integer number (56705439).

Almost surely, 2^421240326 is an apocalyptic number.

421240326 is an abundant number, since it is smaller than the sum of its proper divisors (486046698).

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

421240326 is a wasteful number, since it uses less digits than its factorization.

421240326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400535.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 421240326 is about 20524.1400794284. The cubic root of 421240326 is about 749.6237081264.

The spelling of 421240326 in words is "four hundred twenty-one million, two hundred forty thousand, three hundred twenty-six".