427684340 has 24 divisors (see below), whose sum is σ = 902402592. Its totient is φ = 170261280.

The previous prime is 427684337. The next prime is 427684343. The reversal of 427684340 is 43486724.

It is an interprime number because it is at equal distance from previous prime (427684337) and next prime (427684343).

It is a junction number, because it is equal to n+sod(n) for n = 427684294 and 427684303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427684343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46454 + ... + 54893.

It is an arithmetic number, because the mean of its divisors is an integer number (37600108).

Almost surely, 2^427684340 is an apocalyptic number.

It is an amenable number.

427684340 is an abundant number, since it is smaller than the sum of its proper divisors (474718252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427684340 is a wasteful number, since it uses less digits than its factorization.

427684340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101567 (or 101565 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 427684340 is about 20680.5304574133. The cubic root of 427684340 is about 753.4268899044.

The spelling of 427684340 in words is "four hundred twenty-seven million, six hundred eighty-four thousand, three hundred forty".