2072266397 has 4 divisors (see below), whose sum is σ = 2162364960. Its totient is φ = 1982167836.

The previous prime is 2072266367. The next prime is 2072266409. The reversal of 2072266397 is 7936622702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7936622702 = 2 ⋅3968311351.

It is a cyclic number.

It is not a de Polignac number, because 2072266397 - 2¹⁶ = 2072200861 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 (2072266367) 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, 45049247 + ... + 45049292.

It is an arithmetic number, because the mean of its divisors is an integer number (540591240).

Almost surely, 2^2072266397 is an apocalyptic number.

It is an amenable number.

2072266397 is a deficient number, since it is larger than the sum of its proper divisors (90098563).

2072266397 is an equidigital number, since it uses as much as digits as its factorization.

2072266397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90098562.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 2072266397 is about 45522.1528159642. The cubic root of 2072266397 is about 1274.9168515814.

The spelling of 2072266397 in words is "two billion, seventy-two million, two hundred sixty-six thousand, three hundred ninety-seven".