2261650429 has 4 divisors (see below), whose sum is σ = 2262966300. Its totient is φ = 2260334560.

The previous prime is 2261650411. The next prime is 2261650507. The reversal of 2261650429 is 9240561622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9240561622 = 2 ⋅4620280811.

It can be written as a sum of positive squares in 2 ways, for example, as 1855627929 + 406022500 = 43077^2 + 20150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261650429 - 2¹⁷ = 2261519357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261650129) 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, 655354 + ... + 658795.

It is an arithmetic number, because the mean of its divisors is an integer number (565741575).

Almost surely, 2^2261650429 is an apocalyptic number.

It is an amenable number.

2261650429 is a deficient number, since it is larger than the sum of its proper divisors (1315871).

2261650429 is a wasteful number, since it uses less digits than its factorization.

2261650429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315870.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2261650429 is about 47556.8126455085. The cubic root of 2261650429 is about 1312.6284906890.

The spelling of 2261650429 in words is "two billion, two hundred sixty-one million, six hundred fifty thousand, four hundred twenty-nine".