40462993 has 2 divisors, whose sum is σ = 40462994. Its totient is φ = 40462992.

The previous prime is 40462991. The next prime is 40463011. The reversal of 40462993 is 39926404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23348224 + 17114769 = 4832^2 + 4137^2 .

It is a cyclic number.

It is not a de Polignac number, because 40462993 - 2¹ = 40462991 is a prime.

Together with 40462991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40462991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20231496 + 20231497.

It is an arithmetic number, because the mean of its divisors is an integer number (20231497).

Almost surely, 2^40462993 is an apocalyptic number.

It is an amenable number.

40462993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40462993 is an equidigital number, since it uses as much as digits as its factorization.

40462993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 40462993 is about 6361.0528216640. The cubic root of 40462993 is about 343.3096422735.

The spelling of 40462993 in words is "forty million, four hundred sixty-two thousand, nine hundred ninety-three".