420102726 has 16 divisors (see below), whose sum is σ = 840468528. Its totient is φ = 139990400.

The previous prime is 420102703. The next prime is 420102743. The reversal of 420102726 is 627201024.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420102696 and 420102705.

It is a congruent number.

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, 14266 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (52529283).

Almost surely, 2^420102726 is an apocalyptic number.

420102726 is an abundant number, since it is smaller than the sum of its proper divisors (420365802).

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

420102726 is a wasteful number, since it uses less digits than its factorization.

420102726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21927.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 420102726 is about 20496.4076364616. The cubic root of 420102726 is about 748.9482894515.

The spelling of 420102726 in words is "four hundred twenty million, one hundred two thousand, seven hundred twenty-six".