426220406 has 32 divisors (see below), whose sum is σ = 678440448. Its totient is φ = 200421760.

The previous prime is 426220397. The next prime is 426220409. The reversal of 426220406 is 604022624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426220409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867821 + ... + 868311.

It is an arithmetic number, because the mean of its divisors is an integer number (21201264).

Almost surely, 2^426220406 is an apocalyptic number.

426220406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

426220406 is a deficient number, since it is larger than the sum of its proper divisors (252220042).

426220406 is a wasteful number, since it uses less digits than its factorization.

426220406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 426220406 is about 20645.1061029000. The cubic root of 426220406 is about 752.5662644413.

It can be divided in two parts, 426 and 220406, that multiplied together give a triangular number (93892956 = T₁₃₇₀₃).

The spelling of 426220406 in words is "four hundred twenty-six million, two hundred twenty thousand, four hundred six".