70724380 has 12 divisors (see below), whose sum is σ = 148521240. Its totient is φ = 28289744.

The previous prime is 70724377. The next prime is 70724387. The reversal of 70724380 is 8342707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70724387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768090 + ... + 1768129.

It is an arithmetic number, because the mean of its divisors is an integer number (12376770).

Almost surely, 2^70724380 is an apocalyptic number.

It is an amenable number.

70724380 is an abundant number, since it is smaller than the sum of its proper divisors (77796860).

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

70724380 is a wasteful number, since it uses less digits than its factorization.

70724380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536228 (or 3536226 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 70724380 is about 8409.7788318124. The cubic root of 70724380 is about 413.5452621711.

The spelling of 70724380 in words is "seventy million, seven hundred twenty-four thousand, three hundred eighty".