70543940 has 48 divisors (see below), whose sum is σ = 151925760. Its totient is φ = 27505920.

The previous prime is 70543937. The next prime is 70543943. The reversal of 70543940 is 4934507.

It is an interprime number because it is at equal distance from previous prime (70543937) and next prime (70543943).

It is a junction number, because it is equal to n+sod(n) for n = 70543897 and 70543906.

It is not an unprimeable number, because it can be changed into a prime (70543943) 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, 225224 + ... + 225536.

It is an arithmetic number, because the mean of its divisors is an integer number (3165120).

Almost surely, 2^70543940 is an apocalyptic number.

It is an amenable number.

70543940 is an abundant number, since it is smaller than the sum of its proper divisors (81381820).

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

70543940 is a wasteful number, since it uses less digits than its factorization.

70543940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 70543940 is about 8399.0439932173. The cubic root of 70543940 is about 413.1932682431.

The spelling of 70543940 in words is "seventy million, five hundred forty-three thousand, nine hundred forty".