19313442 has 12 divisors (see below), whose sum is σ = 41845830. Its totient is φ = 6437808.

The previous prime is 19313431. The next prime is 19313447. The reversal of 19313442 is 24431391.

It can be written as a sum of positive squares in only one way, i.e., 14814801 + 4498641 = 3849^2 + 2121^2 .

It is not an unprimeable number, because it can be changed into a prime (19313447) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 536467 + ... + 536502.

Almost surely, 2^19313442 is an apocalyptic number.

19313442 is an abundant number, since it is smaller than the sum of its proper divisors (22532388).

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

19313442 is a wasteful number, since it uses less digits than its factorization.

19313442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072977 (or 1072974 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 19313442 is about 4394.7061335202. The cubic root of 19313442 is about 268.2995184768.

The spelling of 19313442 in words is "nineteen million, three hundred thirteen thousand, four hundred forty-two".