427979450 has 12 divisors (see below), whose sum is σ = 796041870. Its totient is φ = 171191760.

The previous prime is 427979449. The next prime is 427979467. The reversal of 427979450 is 54979724.

It can be written as a sum of positive squares in 3 ways, for example, as 358307041 + 69672409 = 18929^2 + 8347^2 .

It is a junction number, because it is equal to n+sod(n) for n = 427979395 and 427979404.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4279745 + ... + 4279844.

Almost surely, 2^427979450 is an apocalyptic number.

427979450 is a deficient number, since it is larger than the sum of its proper divisors (368062420).

427979450 is a wasteful number, since it uses less digits than its factorization.

427979450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559601 (or 8559596 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 427979450 is about 20687.6641987441. The cubic root of 427979450 is about 753.6001428294.

The spelling of 427979450 in words is "four hundred twenty-seven million, nine hundred seventy-nine thousand, four hundred fifty".