70879340 has 24 divisors (see below), whose sum is σ = 170110752. Its totient is φ = 24301440.

The previous prime is 70879339. The next prime is 70879349. The reversal of 70879340 is 4397807.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70879294 and 70879303.

It is not an unprimeable number, because it can be changed into a prime (70879349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253001 + ... + 253280.

It is an arithmetic number, because the mean of its divisors is an integer number (7087948).

Almost surely, 2^70879340 is an apocalyptic number.

70879340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70879340 is an abundant number, since it is smaller than the sum of its proper divisors (99231412).

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

70879340 is a wasteful number, since it uses less digits than its factorization.

70879340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506297 (or 506295 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 70879340 is about 8418.9868749155. The cubic root of 70879340 is about 413.8470733612.

The spelling of 70879340 in words is "seventy million, eight hundred seventy-nine thousand, three hundred forty".