2236690402 has 8 divisors (see below), whose sum is σ = 3360475116. Its totient is φ = 1116532032.

The previous prime is 2236690387. The next prime is 2236690409. The reversal of 2236690402 is 2040966322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2127884641 + 108805761 = 46129^2 + 10431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2236690409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905043 + ... + 907510.

Almost surely, 2^2236690402 is an apocalyptic number.

2236690402 is a deficient number, since it is larger than the sum of its proper divisors (1123784714).

2236690402 is a wasteful number, since it uses less digits than its factorization.

2236690402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813172.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2236690402 is about 47293.6613300345. The cubic root of 2236690402 is about 1307.7818067743.

The spelling of 2236690402 in words is "two billion, two hundred thirty-six million, six hundred ninety thousand, four hundred two".