70724574 has 48 divisors (see below), whose sum is σ = 162190080. Its totient is φ = 22211280.

The previous prime is 70724569. The next prime is 70724581. The reversal of 70724574 is 47542707.

It is a happy number.

It is a super-3 number, since 3×70724574³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77179 + ... + 78089.

It is an arithmetic number, because the mean of its divisors is an integer number (3378960).

Almost surely, 2^70724574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70724574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81095040).

70724574 is an abundant number, since it is smaller than the sum of its proper divisors (91465506).

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

70724574 is a wasteful number, since it uses less digits than its factorization.

70724574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 70724574 is about 8409.7903659961. The cubic root of 70724574 is about 413.5456402948.

It can be divided in two parts, 707 and 24574, that added together give a square (25281 = 159²).

The spelling of 70724574 in words is "seventy million, seven hundred twenty-four thousand, five hundred seventy-four".