2190742733 has 2 divisors, whose sum is σ = 2190742734. Its totient is φ = 2190742732.

The previous prime is 2190742703. The next prime is 2190742777. The reversal of 2190742733 is 3372470912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1535229124 + 655513609 = 39182^2 + 25603^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190742733 - 2²⁴ = 2173965517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190742703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095371366 + 1095371367.

It is an arithmetic number, because the mean of its divisors is an integer number (1095371367).

Almost surely, 2^2190742733 is an apocalyptic number.

It is an amenable number.

2190742733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190742733 is an equidigital number, since it uses as much as digits as its factorization.

2190742733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 2190742733 is about 46805.3707708848. The cubic root of 2190742733 is about 1298.7646515089.

The spelling of 2190742733 in words is "two billion, one hundred ninety million, seven hundred forty-two thousand, seven hundred thirty-three".