40479223 has 2 divisors, whose sum is σ = 40479224. Its totient is φ = 40479222.

The previous prime is 40479217. The next prime is 40479269. The reversal of 40479223 is 32297404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40479223 - 2¹³ = 40471031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40479293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20239611 + 20239612.

It is an arithmetic number, because the mean of its divisors is an integer number (20239612).

Almost surely, 2^40479223 is an apocalyptic number.

40479223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40479223 is an equidigital number, since it uses as much as digits as its factorization.

40479223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40479223 is about 6362.3284259774. The cubic root of 40479223 is about 343.3555374670.

The spelling of 40479223 in words is "forty million, four hundred seventy-nine thousand, two hundred twenty-three".