19107942 has 48 divisors (see below), whose sum is σ = 44957952. Its totient is φ = 5397840.

The previous prime is 19107941. The next prime is 19107943. The reversal of 19107942 is 24970191.

It is an interprime number because it is at equal distance from previous prime (19107941) and next prime (19107943).

It is a super-3 number, since 3×19107942³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19107941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29967 + ... + 30597.

It is an arithmetic number, because the mean of its divisors is an integer number (936624).

Almost surely, 2^19107942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19107942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22478976).

19107942 is an abundant number, since it is smaller than the sum of its proper divisors (25850010).

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

19107942 is a wasteful number, since it uses less digits than its factorization.

19107942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 19107942 is about 4371.2632041551. The cubic root of 19107942 is about 267.3445313159.

The spelling of 19107942 in words is "nineteen million, one hundred seven thousand, nine hundred forty-two".