420271344 has 90 divisors (see below), whose sum is σ = 1199940560. Its totient is φ = 137314944.

The previous prime is 420271339. The next prime is 420271349. The reversal of 420271344 is 443172024.

It is an interprime number because it is at equal distance from previous prime (420271339) and next prime (420271349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420271349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 403977 + ... + 405015.

Almost surely, 2^420271344 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 420271344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599970280).

420271344 is an abundant number, since it is smaller than the sum of its proper divisors (779669216).

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

420271344 is a wasteful number, since it uses less digits than its factorization.

420271344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 420271344 is about 20500.5205787560. The cubic root of 420271344 is about 749.0484786534.

The spelling of 420271344 in words is "four hundred twenty million, two hundred seventy-one thousand, three hundred forty-four".