70339540 has 48 divisors (see below), whose sum is σ = 157090752. Its totient is φ = 26364416.

The previous prime is 70339537. The next prime is 70339547. The reversal of 70339540 is 4593307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70339547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150387 + ... + 150853.

It is an arithmetic number, because the mean of its divisors is an integer number (3272724).

Almost surely, 2^70339540 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 70339540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78545376).

70339540 is an abundant number, since it is smaller than the sum of its proper divisors (86751212).

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

70339540 is a wasteful number, since it uses less digits than its factorization.

70339540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 70339540 is about 8386.8671147217. The cubic root of 70339540 is about 412.7938084348.

The spelling of 70339540 in words is "seventy million, three hundred thirty-nine thousand, five hundred forty".