40622287 has 2 divisors, whose sum is σ = 40622288. Its totient is φ = 40622286.

The previous prime is 40622227. The next prime is 40622291. The reversal of 40622287 is 78222604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40622287 - 2⁷ = 40622159 is a prime.

It is a super-2 number, since 2×40622287² = 3300340402220738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40622207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20311143 + 20311144.

It is an arithmetic number, because the mean of its divisors is an integer number (20311144).

Almost surely, 2^40622287 is an apocalyptic number.

40622287 is a deficient number, since it is larger than the sum of its proper divisors (1).

40622287 is an equidigital number, since it uses as much as digits as its factorization.

40622287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40622287 is about 6373.5615632078. The cubic root of 40622287 is about 343.7595641636.

The spelling of 40622287 in words is "forty million, six hundred twenty-two thousand, two hundred eighty-seven".