70945780 has 24 divisors (see below), whose sum is σ = 151030152. Its totient is φ = 27988992.

The previous prime is 70945769. The next prime is 70945783. The reversal of 70945780 is 8754907.

It can be written as a sum of positive squares in 4 ways, for example, as 11316496 + 59629284 = 3364^2 + 7722^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70945783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22837 + ... + 25756.

It is an arithmetic number, because the mean of its divisors is an integer number (6292923).

Almost surely, 2^70945780 is an apocalyptic number.

It is an amenable number.

70945780 is an abundant number, since it is smaller than the sum of its proper divisors (80084372).

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

70945780 is a wasteful number, since it uses less digits than its factorization.

70945780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48675 (or 48673 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 70945780 is about 8422.9317936215. The cubic root of 70945780 is about 413.9763419311.

The spelling of 70945780 in words is "seventy million, nine hundred forty-five thousand, seven hundred eighty".