372409489 has 2 divisors, whose sum is σ = 372409490. Its totient is φ = 372409488.

The previous prime is 372409487. The next prime is 372409547. The reversal of 372409489 is 984904273.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349989264 + 22420225 = 18708^2 + 4735^2 .

It is a cyclic number.

It is not a de Polignac number, because 372409489 - 2¹ = 372409487 is a prime.

It is a super-2 number, since 2×372409489² = 277377654994482242, which contains 22 as substring.

Together with 372409487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (372409483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186204744 + 186204745.

It is an arithmetic number, because the mean of its divisors is an integer number (186204745).

Almost surely, 2^372409489 is an apocalyptic number.

It is an amenable number.

372409489 is a deficient number, since it is larger than the sum of its proper divisors (1).

372409489 is an equidigital number, since it uses as much as digits as its factorization.

372409489 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 46.

The square root of 372409489 is about 19297.9141100794. The cubic root of 372409489 is about 719.4604297217.

The spelling of 372409489 in words is "three hundred seventy-two million, four hundred nine thousand, four hundred eighty-nine".