40099757 has 2 divisors, whose sum is σ = 40099758. Its totient is φ = 40099756.

The previous prime is 40099733. The next prime is 40099781. The reversal of 40099757 is 75799004.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (40099733) and next prime (40099781).

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 1485961 = 6214^2 + 1219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40099757 is a prime.

It is a super-2 number, since 2×40099757² = 3215981022918098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40099357) 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 as a sum of consecutive naturals, namely, 20049878 + 20049879.

It is an arithmetic number, because the mean of its divisors is an integer number (20049879).

Almost surely, 2^40099757 is an apocalyptic number.

It is an amenable number.

40099757 is a deficient number, since it is larger than the sum of its proper divisors (1).

40099757 is an equidigital number, since it uses as much as digits as its factorization.

40099757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 40099757 is about 6332.4368926978. The cubic root of 40099757 is about 342.2792567693.

The spelling of 40099757 in words is "forty million, ninety-nine thousand, seven hundred fifty-seven".