40453807 has 2 divisors, whose sum is σ = 40453808. Its totient is φ = 40453806.

The previous prime is 40453789. The next prime is 40453823. The reversal of 40453807 is 70835404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40453807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40453877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20226903 + 20226904.

It is an arithmetic number, because the mean of its divisors is an integer number (20226904).

Almost surely, 2^40453807 is an apocalyptic number.

40453807 is a deficient number, since it is larger than the sum of its proper divisors (1).

40453807 is an equidigital number, since it uses as much as digits as its factorization.

40453807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 40453807 is about 6360.3307303945. The cubic root of 40453807 is about 343.2836606640.

The spelling of 40453807 in words is "forty million, four hundred fifty-three thousand, eight hundred seven".