40452751 has 2 divisors, whose sum is σ = 40452752. Its totient is φ = 40452750.

The previous prime is 40452743. The next prime is 40452787. The reversal of 40452751 is 15725404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40452751 - 2³ = 40452743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40452151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20226375 + 20226376.

It is an arithmetic number, because the mean of its divisors is an integer number (20226376).

Almost surely, 2^40452751 is an apocalyptic number.

40452751 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452751 is an equidigital number, since it uses as much as digits as its factorization.

40452751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40452751 is about 6360.2477153017. The cubic root of 40452751 is about 343.2806736299.

The spelling of 40452751 in words is "forty million, four hundred fifty-two thousand, seven hundred fifty-one".