40651433 has 2 divisors, whose sum is σ = 40651434. Its totient is φ = 40651432.

The previous prime is 40651423. The next prime is 40651483. The reversal of 40651433 is 33415604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27489049 + 13162384 = 5243^2 + 3628^2 .

It is a cyclic number.

It is not a de Polignac number, because 40651433 - 2¹⁰ = 40650409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40651423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20325716 + 20325717.

It is an arithmetic number, because the mean of its divisors is an integer number (20325717).

Almost surely, 2^40651433 is an apocalyptic number.

It is an amenable number.

40651433 is a deficient number, since it is larger than the sum of its proper divisors (1).

40651433 is an equidigital number, since it uses as much as digits as its factorization.

40651433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40651433 is about 6375.8476299234. The cubic root of 40651433 is about 343.8417589532.

The spelling of 40651433 in words is "forty million, six hundred fifty-one thousand, four hundred thirty-three".