45428419 has 2 divisors, whose sum is σ = 45428420. Its totient is φ = 45428418.

The previous prime is 45428417. The next prime is 45428429. The reversal of 45428419 is 91482454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45428419 - 2¹ = 45428417 is a prime.

It is a super-2 number, since 2×45428419² = 4127482505679122, which contains 22 as substring.

Together with 45428417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45428417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22714209 + 22714210.

It is an arithmetic number, because the mean of its divisors is an integer number (22714210).

Almost surely, 2^45428419 is an apocalyptic number.

45428419 is a deficient number, since it is larger than the sum of its proper divisors (1).

45428419 is an equidigital number, since it uses as much as digits as its factorization.

45428419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 45428419 is about 6740.0607564027. The cubic root of 45428419 is about 356.8145380194.

The spelling of 45428419 in words is "forty-five million, four hundred twenty-eight thousand, four hundred nineteen".