40348547 has 2 divisors, whose sum is σ = 40348548. Its totient is φ = 40348546.

The previous prime is 40348489. The next prime is 40348549. The reversal of 40348547 is 74584304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40348547 - 2¹⁶ = 40283011 is a prime.

It is a super-2 number, since 2×40348547² = 3256010490022418, which contains 22 as substring.

Together with 40348549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40348549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20174273 + 20174274.

It is an arithmetic number, because the mean of its divisors is an integer number (20174274).

Almost surely, 2^40348547 is an apocalyptic number.

40348547 is a deficient number, since it is larger than the sum of its proper divisors (1).

40348547 is an equidigital number, since it uses as much as digits as its factorization.

40348547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 40348547 is about 6352.0506137782. The cubic root of 40348547 is about 342.9856629706.

The spelling of 40348547 in words is "forty million, three hundred forty-eight thousand, five hundred forty-seven".