19152040 has 16 divisors (see below), whose sum is σ = 43092180. Its totient is φ = 7660800.

The previous prime is 19151989. The next prime is 19152041. The reversal of 19152040 is 4025191.

It can be written as a sum of positive squares in 2 ways, for example, as 19131876 + 20164 = 4374^2 + 142^2 .

It is not an unprimeable number, because it can be changed into a prime (19152041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239361 + ... + 239440.

Almost surely, 2^19152040 is an apocalyptic number.

19152040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19152040 is an abundant number, since it is smaller than the sum of its proper divisors (23940140).

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

19152040 is a wasteful number, since it uses less digits than its factorization.

19152040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478812 (or 478808 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 19152040 is about 4376.3043769829. The cubic root of 19152040 is about 267.5500357679.

The spelling of 19152040 in words is "nineteen million, one hundred fifty-two thousand, forty".