420393552 has 20 divisors (see below), whose sum is σ = 1086016800. Its totient is φ = 140131168.

The previous prime is 420393539. The next prime is 420393553. The reversal of 420393552 is 255393024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420393553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379052 + ... + 4379147.

It is an arithmetic number, because the mean of its divisors is an integer number (54300840).

Almost surely, 2^420393552 is an apocalyptic number.

It is an amenable number.

420393552 is an abundant number, since it is smaller than the sum of its proper divisors (665623248).

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

420393552 is a wasteful number, since it uses less digits than its factorization.

420393552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758210 (or 8758204 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 420393552 is about 20503.5009693467. The cubic root of 420393552 is about 749.1210752797.

The spelling of 420393552 in words is "four hundred twenty million, three hundred ninety-three thousand, five hundred fifty-two".