678472038 has 24 divisors (see below), whose sum is σ = 1524469128. Its totient is φ = 226157184.

The previous prime is 678472037. The next prime is 678472051. The reversal of 678472038 is 830274876.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 678471984 and 678472002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678472037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697531 + ... + 698502.

It is an arithmetic number, because the mean of its divisors is an integer number (63519547).

Almost surely, 2^678472038 is an apocalyptic number.

678472038 is an abundant number, since it is smaller than the sum of its proper divisors (845997090).

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

678472038 is a wasteful number, since it uses less digits than its factorization.

678472038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396050 (or 1396038 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 678472038 is about 26047.4958105381. The cubic root of 678472038 is about 878.7067945414.

The spelling of 678472038 in words is "six hundred seventy-eight million, four hundred seventy-two thousand, thirty-eight".