40757919 has 8 divisors (see below), whose sum is σ = 54493440. Its totient is φ = 27097176.

The previous prime is 40757903. The next prime is 40757923. The reversal of 40757919 is 91975704.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40757919 - 2⁴ = 40757903 is a prime.

It is a super-2 number, since 2×40757919² = 3322415922421122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40757929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17409 + ... + 19610.

It is an arithmetic number, because the mean of its divisors is an integer number (6811680).

Almost surely, 2^40757919 is an apocalyptic number.

40757919 is a deficient number, since it is larger than the sum of its proper divisors (13735521).

40757919 is a wasteful number, since it uses less digits than its factorization.

40757919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37389.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 40757919 is about 6384.1929012210. The cubic root of 40757919 is about 344.1417271380.

The spelling of 40757919 in words is "forty million, seven hundred fifty-seven thousand, nine hundred nineteen".