19424970 has 24 divisors (see below), whose sum is σ = 50505156. Its totient is φ = 5179968.

The previous prime is 19424957. The next prime is 19424989. The reversal of 19424970 is 7942491.

It can be written as a sum of positive squares in 2 ways, for example, as 19368801 + 56169 = 4401^2 + 237^2 .

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107827 + ... + 108006.

Almost surely, 2^19424970 is an apocalyptic number.

19424970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19424970 is an abundant number, since it is smaller than the sum of its proper divisors (31080186).

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

19424970 is a wasteful number, since it uses less digits than its factorization.

19424970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215846 (or 215843 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 19424970 is about 4407.3767708241. The cubic root of 19424970 is about 268.8149711315.

The spelling of 19424970 in words is "nineteen million, four hundred twenty-four thousand, nine hundred seventy".