424173520 has 20 divisors (see below), whose sum is σ = 986203620. Its totient is φ = 169669376.

The previous prime is 424173481. The next prime is 424173551. The reversal of 424173520 is 25371424.

It can be written as a sum of positive squares in 2 ways, for example, as 253191744 + 170981776 = 15912^2 + 13076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651005 + ... + 2651164.

It is an arithmetic number, because the mean of its divisors is an integer number (49310181).

Almost surely, 2^424173520 is an apocalyptic number.

424173520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424173520 is an abundant number, since it is smaller than the sum of its proper divisors (562030100).

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

424173520 is a wasteful number, since it uses less digits than its factorization.

424173520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302182 (or 5302176 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 424173520 is about 20595.4732890507. The cubic root of 424173520 is about 751.3596196823.

It can be divided in two parts, 42417 and 3520, that multiplied together give a triangular number (149307840 = T₁₇₂₈₀).

The spelling of 424173520 in words is "four hundred twenty-four million, one hundred seventy-three thousand, five hundred twenty".