70943740 has 48 divisors (see below), whose sum is σ = 171864000. Its totient is φ = 24095232.

The previous prime is 70943731. The next prime is 70943749. The reversal of 70943740 is 4734907.

It is an interprime number because it is at equal distance from previous prime (70943731) and next prime (70943749).

It is a junction number, because it is equal to n+sod(n) for n = 70943696 and 70943705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70943749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12936 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (3580500).

Almost surely, 2^70943740 is an apocalyptic number.

70943740 is a gapful number since it is divisible by the number (70) 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 70943740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85932000).

70943740 is an abundant number, since it is smaller than the sum of its proper divisors (100920260).

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

70943740 is a wasteful number, since it uses less digits than its factorization.

70943740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4772 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70943740 is about 8422.8106947740. The cubic root of 70943740 is about 413.9723740191.

The spelling of 70943740 in words is "seventy million, nine hundred forty-three thousand, seven hundred forty".