40794437 has 2 divisors, whose sum is σ = 40794438. Its totient is φ = 40794436.

The previous prime is 40794427. The next prime is 40794493. The reversal of 40794437 is 73449704.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40018276 + 776161 = 6326^2 + 881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40794437 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40794437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40794427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20397218 + 20397219.

It is an arithmetic number, because the mean of its divisors is an integer number (20397219).

Almost surely, 2^40794437 is an apocalyptic number.

It is an amenable number.

40794437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40794437 is an equidigital number, since it uses as much as digits as its factorization.

40794437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40794437 is about 6387.0522935075. The cubic root of 40794437 is about 344.2444770365.

The spelling of 40794437 in words is "forty million, seven hundred ninety-four thousand, four hundred thirty-seven".