40242519 has 12 divisors (see below), whose sum is σ = 61547616. Its totient is φ = 25250112.

The previous prime is 40242511. The next prime is 40242533. The reversal of 40242519 is 91524204.

40242519 is a `hidden beast` number, since 402 + 4 + 251 + 9 = 666.

40242519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40242519 - 2³ = 40242511 is a prime.

It is a super-2 number, since 2×40242519² = 3238920670930722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40242492 and 40242501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242511) 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, 131359 + ... + 131664.

It is an arithmetic number, because the mean of its divisors is an integer number (5128968).

Almost surely, 2^40242519 is an apocalyptic number.

40242519 is a deficient number, since it is larger than the sum of its proper divisors (21305097).

40242519 is a wasteful number, since it uses less digits than its factorization.

40242519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263046 (or 263043 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40242519 is about 6343.6991574317. The cubic root of 40242519 is about 342.6849666015.

The spelling of 40242519 in words is "forty million, two hundred forty-two thousand, five hundred nineteen".