427742445 has 32 divisors (see below), whose sum is σ = 738162432. Its totient is φ = 210258432.

The previous prime is 427742437. The next prime is 427742453. The reversal of 427742445 is 544247724.

It is an interprime number because it is at equal distance from previous prime (427742437) and next prime (427742453).

It is not a de Polignac number, because 427742445 - 2³ = 427742437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171729 + ... + 174201.

It is an arithmetic number, because the mean of its divisors is an integer number (23067576).

Almost surely, 2^427742445 is an apocalyptic number.

It is an amenable number.

427742445 is a deficient number, since it is larger than the sum of its proper divisors (310419987).

427742445 is a wasteful number, since it uses less digits than its factorization.

427742445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381.

The product of its digits is 250880, while the sum is 39.

The square root of 427742445 is about 20681.9352334350. The cubic root of 427742445 is about 753.4610084376.

The spelling of 427742445 in words is "four hundred twenty-seven million, seven hundred forty-two thousand, four hundred forty-five".