70545384 has 256 divisors, whose sum is σ = 250252800. Its totient is φ = 17915904.

The previous prime is 70545383. The next prime is 70545389. The reversal of 70545384 is 48354507.

70545384 is a `hidden beast` number, since 70 + 54 + 538 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70545383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 727224 + ... + 727320.

It is an arithmetic number, because the mean of its divisors is an integer number (977550).

Almost surely, 2^70545384 is an apocalyptic number.

70545384 is a gapful number since it is divisible by the number (74) 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 70545384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125126400).

70545384 is an abundant number, since it is smaller than the sum of its proper divisors (179707416).

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

70545384 is a wasteful number, since it uses less digits than its factorization.

70545384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 70545384 is about 8399.1299549418. The cubic root of 70545384 is about 413.1960875120.

The spelling of 70545384 in words is "seventy million, five hundred forty-five thousand, three hundred eighty-four".