424020919 has 16 divisors (see below), whose sum is σ = 530798400. Its totient is φ = 330269184.

The previous prime is 424020913. The next prime is 424020973. The reversal of 424020919 is 919020424.

It is a happy number.

It is not a de Polignac number, because 424020919 - 2¹¹ = 424018871 is a prime.

It is a super-2 number, since 2×424020919² = 359587479499209122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424020913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57984 + ... + 64885.

It is an arithmetic number, because the mean of its divisors is an integer number (33174900).

Almost surely, 2^424020919 is an apocalyptic number.

424020919 is a deficient number, since it is larger than the sum of its proper divisors (106777481).

424020919 is a wasteful number, since it uses less digits than its factorization.

424020919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122922.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 424020919 is about 20591.7682339327. The cubic root of 424020919 is about 751.2695056319.

The spelling of 424020919 in words is "four hundred twenty-four million, twenty thousand, nine hundred nineteen".