426109820 has 24 divisors (see below), whose sum is σ = 895234704. Its totient is φ = 170366976.

The previous prime is 426109819. The next prime is 426109823. The reversal of 426109820 is 28901624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426109823) 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, 66059 + ... + 72221.

It is an arithmetic number, because the mean of its divisors is an integer number (37301446).

Almost surely, 2^426109820 is an apocalyptic number.

It is an amenable number.

426109820 is an abundant number, since it is smaller than the sum of its proper divisors (469124884).

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

426109820 is a wasteful number, since it uses less digits than its factorization.

426109820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629 (or 9627 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 426109820 is about 20642.4276673070. The cubic root of 426109820 is about 752.5011725386.

The spelling of 426109820 in words is "four hundred twenty-six million, one hundred nine thousand, eight hundred twenty".