1880292397 has 2 divisors, whose sum is σ = 1880292398. Its totient is φ = 1880292396.

The previous prime is 1880292391. The next prime is 1880292413. The reversal of 1880292397 is 7932920881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1826622121 + 53670276 = 42739^2 + 7326^2 .

It is a cyclic number.

It is not a de Polignac number, because 1880292397 - 2¹⁵ = 1880259629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1880292397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1880292391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 940146198 + 940146199.

It is an arithmetic number, because the mean of its divisors is an integer number (940146199).

Almost surely, 2^1880292397 is an apocalyptic number.

It is an amenable number.

1880292397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1880292397 is an equidigital number, since it uses as much as digits as its factorization.

1880292397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1880292397 is about 43362.3384632333. The cubic root of 1880292397 is about 1234.2651404718.

The spelling of 1880292397 in words is "one billion, eight hundred eighty million, two hundred ninety-two thousand, three hundred ninety-seven".