940645633 has 2 divisors, whose sum is σ = 940645634. Its totient is φ = 940645632.

The previous prime is 940645621. The next prime is 940645663. The reversal of 940645633 is 336546049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536756224 + 403889409 = 23168^2 + 20097^2 .

It is a cyclic number.

It is not a de Polignac number, because 940645633 - 2¹³ = 940637441 is a prime.

It is not a weakly prime, because it can be changed into another prime (940645663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470322816 + 470322817.

It is an arithmetic number, because the mean of its divisors is an integer number (470322817).

Almost surely, 2^940645633 is an apocalyptic number.

It is an amenable number.

940645633 is a deficient number, since it is larger than the sum of its proper divisors (1).

940645633 is an equidigital number, since it uses as much as digits as its factorization.

940645633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 940645633 is about 30669.9467394386. The cubic root of 940645633 is about 979.8103315434.

It can be divided in two parts, 9406456 and 33, that added together give a square (9406489 = 3067²).

The spelling of 940645633 in words is "nine hundred forty million, six hundred forty-five thousand, six hundred thirty-three".