679151940 has 48 divisors (see below), whose sum is σ = 1925710080. Its totient is φ = 178813440.

The previous prime is 679151939. The next prime is 679151971. The reversal of 679151940 is 49151976.

It is a super-2 number, since 2×679151940² = 922494715211527200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679151892 and 679151901.

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, 66901 + ... + 76380.

It is an arithmetic number, because the mean of its divisors is an integer number (40118960).

Almost surely, 2^679151940 is an apocalyptic number.

679151940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

679151940 is an abundant number, since it is smaller than the sum of its proper divisors (1246558140).

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

679151940 is a wasteful number, since it uses less digits than its factorization.

679151940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143372 (or 143370 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 679151940 is about 26060.5437395308. The cubic root of 679151940 is about 879.0002161417. Note that the first 3 decimals are identical.

The spelling of 679151940 in words is "six hundred seventy-nine million, one hundred fifty-one thousand, nine hundred forty".