679901040 has 400 divisors, whose sum is σ = 2908855488. Its totient is φ = 143327232.

The previous prime is 679901003. The next prime is 679901051. The reversal of 679901040 is 40109976.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 679900986 and 679901004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 589104 + ... + 590256.

Almost surely, 2^679901040 is an apocalyptic number.

679901040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679901040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454427744).

679901040 is an abundant number, since it is smaller than the sum of its proper divisors (2228954448).

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

679901040 is a wasteful number, since it uses less digits than its factorization.

679901040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 679901040 is about 26074.9120803887. The cubic root of 679901040 is about 879.3232744931.

The spelling of 679901040 in words is "six hundred seventy-nine million, nine hundred one thousand, forty".