45220379 has 2 divisors, whose sum is σ = 45220380. Its totient is φ = 45220378.

The previous prime is 45220363. The next prime is 45220381. The reversal of 45220379 is 97302254.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45220379 - 2⁴ = 45220363 is a prime.

Together with 45220381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45220319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610189 + 22610190.

It is an arithmetic number, because the mean of its divisors is an integer number (22610190).

Almost surely, 2^45220379 is an apocalyptic number.

45220379 is a deficient number, since it is larger than the sum of its proper divisors (1).

45220379 is an equidigital number, since it uses as much as digits as its factorization.

45220379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 45220379 is about 6724.6099515139. The cubic root of 45220379 is about 356.2690255972.

The spelling of 45220379 in words is "forty-five million, two hundred twenty thousand, three hundred seventy-nine".