19357842 has 24 divisors (see below), whose sum is σ = 45037296. Its totient is φ = 5530728.

The previous prime is 19357831. The next prime is 19357847. The reversal of 19357842 is 24875391.

It is a self number, because there is not a number n which added to its sum of digits gives 19357842.

It is not an unprimeable number, because it can be changed into a prime (19357847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32628 + ... + 33215.

It is an arithmetic number, because the mean of its divisors is an integer number (1876554).

Almost surely, 2^19357842 is an apocalyptic number.

19357842 is an abundant number, since it is smaller than the sum of its proper divisors (25679454).

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

19357842 is a wasteful number, since it uses less digits than its factorization.

19357842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65862 (or 65855 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 19357842 is about 4399.7547658932. The cubic root of 19357842 is about 268.5049605664.

The spelling of 19357842 in words is "nineteen million, three hundred fifty-seven thousand, eight hundred forty-two".