40579387 has 2 divisors, whose sum is σ = 40579388. Its totient is φ = 40579386.

The previous prime is 40579369. The next prime is 40579393. The reversal of 40579387 is 78397504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40579387 - 2¹⁵ = 40546619 is a prime.

It is not a weakly prime, because it can be changed into another prime (40579327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20289693 + 20289694.

It is an arithmetic number, because the mean of its divisors is an integer number (20289694).

Almost surely, 2^40579387 is an apocalyptic number.

40579387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40579387 is an equidigital number, since it uses as much as digits as its factorization.

40579387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40579387 is about 6370.1952089398. The cubic root of 40579387 is about 343.6385100918.

The spelling of 40579387 in words is "forty million, five hundred seventy-nine thousand, three hundred eighty-seven".