40254737 has 2 divisors, whose sum is σ = 40254738. Its totient is φ = 40254736.

The previous prime is 40254733. The next prime is 40254803. The reversal of 40254737 is 73745204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39325441 + 929296 = 6271^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 40254737 - 2² = 40254733 is a prime.

It is not a weakly prime, because it can be changed into another prime (40254733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127368 + 20127369.

It is an arithmetic number, because the mean of its divisors is an integer number (20127369).

Almost surely, 2^40254737 is an apocalyptic number.

It is an amenable number.

40254737 is a deficient number, since it is larger than the sum of its proper divisors (1).

40254737 is an equidigital number, since it uses as much as digits as its factorization.

40254737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 40254737 is about 6344.6620871407. The cubic root of 40254737 is about 342.7196438646.

The spelling of 40254737 in words is "forty million, two hundred fifty-four thousand, seven hundred thirty-seven".