421052736 has 112 divisors (see below), whose sum is σ = 1270430784. Its totient is φ = 121921536.

The previous prime is 421052729. The next prime is 421052741. The reversal of 421052736 is 637250124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37471 + ... + 47393.

It is an arithmetic number, because the mean of its divisors is an integer number (11343132).

Almost surely, 2^421052736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421052736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635215392).

421052736 is an abundant number, since it is smaller than the sum of its proper divisors (849378048).

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

421052736 is a wasteful number, since it uses less digits than its factorization.

421052736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9968 (or 9958 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 421052736 is about 20519.5695861292. The cubic root of 421052736 is about 749.5124155283.

The spelling of 421052736 in words is "four hundred twenty-one million, fifty-two thousand, seven hundred thirty-six".