70524540 has 96 divisors (see below), whose sum is σ = 223110720. Its totient is φ = 18489600.

The previous prime is 70524539. The next prime is 70524547. The reversal of 70524540 is 4542507.

70524540 is a `hidden beast` number, since 70 + 52 + 4 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70524547) 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 31 ways as a sum of consecutive naturals, for example, 31870 + ... + 34010.

It is an arithmetic number, because the mean of its divisors is an integer number (2324070).

Almost surely, 2^70524540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70524540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111555360).

70524540 is an abundant number, since it is smaller than the sum of its proper divisors (152586180).

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

70524540 is a wasteful number, since it uses less digits than its factorization.

70524540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 70524540 is about 8397.8890204622. The cubic root of 70524540 is about 413.1553879077.

The spelling of 70524540 in words is "seventy million, five hundred twenty-four thousand, five hundred forty".