19396420 has 12 divisors (see below), whose sum is σ = 40732524. Its totient is φ = 7758560.

The previous prime is 19396417. The next prime is 19396453. The reversal of 19396420 is 2469391.

It can be written as a sum of positive squares in 2 ways, for example, as 2553604 + 16842816 = 1598^2 + 4104^2 .

It is a super-2 number, since 2×19396420² = 752442217632800, which contains 22 as substring.

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, 484891 + ... + 484930.

It is an arithmetic number, because the mean of its divisors is an integer number (3394377).

Almost surely, 2^19396420 is an apocalyptic number.

19396420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19396420 is an abundant number, since it is smaller than the sum of its proper divisors (21336104).

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

19396420 is a wasteful number, since it uses less digits than its factorization.

19396420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969830 (or 969828 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 19396420 is about 4404.1366917933. The cubic root of 19396420 is about 268.6832089294.

The spelling of 19396420 in words is "nineteen million, three hundred ninety-six thousand, four hundred twenty".