40201387 has 2 divisors, whose sum is σ = 40201388. Its totient is φ = 40201386.

The previous prime is 40201373. The next prime is 40201393. The reversal of 40201387 is 78310204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40201387 - 2²³ = 31812779 is a prime.

It is not a weakly prime, because it can be changed into another prime (40201307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100693 + 20100694.

It is an arithmetic number, because the mean of its divisors is an integer number (20100694).

Almost surely, 2^40201387 is an apocalyptic number.

40201387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201387 is an equidigital number, since it uses as much as digits as its factorization.

40201387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40201387 is about 6340.4563715871. The cubic root of 40201387 is about 342.5681736884.

The spelling of 40201387 in words is "forty million, two hundred one thousand, three hundred eighty-seven".