19125940 has 36 divisors (see below), whose sum is σ = 40992588. Its totient is φ = 7495680.

The previous prime is 19125919. The next prime is 19125941. The reversal of 19125940 is 4952191.

It can be written as a sum of positive squares in 6 ways, for example, as 2184484 + 16941456 = 1478^2 + 4116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19125941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74292 + ... + 74548.

It is an arithmetic number, because the mean of its divisors is an integer number (1138683).

Almost surely, 2^19125940 is an apocalyptic number.

19125940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19125940 is an abundant number, since it is smaller than the sum of its proper divisors (21866648).

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

19125940 is a wasteful number, since it uses less digits than its factorization.

19125940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 19125940 is about 4373.3213922601. The cubic root of 19125940 is about 267.4284433169.

The spelling of 19125940 in words is "nineteen million, one hundred twenty-five thousand, nine hundred forty".