678546232 has 64 divisors (see below), whose sum is σ = 1569758400. Its totient is φ = 267770880.

The previous prime is 678546229. The next prime is 678546283. The reversal of 678546232 is 232645876.

It is a super-2 number, since 2×678546232² = 920849977922795648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378394 + ... + 380182.

It is an arithmetic number, because the mean of its divisors is an integer number (24527475).

Almost surely, 2^678546232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678546232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784879200).

678546232 is an abundant number, since it is smaller than the sum of its proper divisors (891212168).

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

678546232 is a wasteful number, since it uses less digits than its factorization.

678546232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336 (or 2332 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 678546232 is about 26048.9199776114. The cubic root of 678546232 is about 878.7388235674.

The spelling of 678546232 in words is "six hundred seventy-eight million, five hundred forty-six thousand, two hundred thirty-two".