40100387 has 2 divisors, whose sum is σ = 40100388. Its totient is φ = 40100386.

The previous prime is 40100351. The next prime is 40100441. The reversal of 40100387 is 78300104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40100387 - 2⁶ = 40100323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40100327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050193 + 20050194.

It is an arithmetic number, because the mean of its divisors is an integer number (20050194).

Almost surely, 2^40100387 is an apocalyptic number.

40100387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40100387 is an equidigital number, since it uses as much as digits as its factorization.

40100387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 40100387 is about 6332.4866363854. The cubic root of 40100387 is about 342.2810492556.

The spelling of 40100387 in words is "forty million, one hundred thousand, three hundred eighty-seven".