420248570 has 64 divisors (see below), whose sum is σ = 899078400. Its totient is φ = 138378240.

The previous prime is 420248567. The next prime is 420248603. The reversal of 420248570 is 75842024.

It is a super-3 number, since 3×420248570³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488801 + ... + 489659.

It is an arithmetic number, because the mean of its divisors is an integer number (14048100).

Almost surely, 2^420248570 is an apocalyptic number.

420248570 is an abundant number, since it is smaller than the sum of its proper divisors (478829830).

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

420248570 is a wasteful number, since it uses less digits than its factorization.

420248570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 420248570 is about 20499.9651219215. The cubic root of 420248570 is about 749.0349483961.

The spelling of 420248570 in words is "four hundred twenty million, two hundred forty-eight thousand, five hundred seventy".