19942450 has 48 divisors (see below), whose sum is σ = 40979520. Its totient is φ = 7160000.

The previous prime is 19942423. The next prime is 19942451. The reversal of 19942450 is 5424991.

It is not an unprimeable number, because it can be changed into a prime (19942451) 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, 55371 + ... + 55729.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^19942450 is an apocalyptic number.

19942450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19942450 is an abundant number, since it is smaller than the sum of its proper divisors (21037070).

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

19942450 is a wasteful number, since it uses less digits than its factorization.

19942450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 19942450 is about 4465.6970340586. The cubic root of 19942450 is about 271.1811536432.

It can be divided in two parts, 1994 and 2450, that added together give a palindrome (4444).

The spelling of 19942450 in words is "nineteen million, nine hundred forty-two thousand, four hundred fifty".