19474340 has 24 divisors (see below), whose sum is σ = 40997880. Its totient is φ = 7770368.

The previous prime is 19474291. The next prime is 19474363. The reversal of 19474340 is 4347491.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8076964 + 11397376 = 2842^2 + 3376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19474297 and 19474306.

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 7 ways as a sum of consecutive naturals, for example, 9224 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (1708245).

Almost surely, 2^19474340 is an apocalyptic number.

19474340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19474340 is an abundant number, since it is smaller than the sum of its proper divisors (21523540).

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

19474340 is a wasteful number, since it uses less digits than its factorization.

19474340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 19474340 is about 4412.9740538553. The cubic root of 19474340 is about 269.0425161858.

The spelling of 19474340 in words is "nineteen million, four hundred seventy-four thousand, three hundred forty".