70394240 has 128 divisors (see below), whose sum is σ = 202694400. Its totient is φ = 22837248.

The previous prime is 70394189. The next prime is 70394267. The reversal of 70394240 is 4249307.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84707 + ... + 85533.

It is an arithmetic number, because the mean of its divisors is an integer number (1583550).

Almost surely, 2^70394240 is an apocalyptic number.

70394240 is a gapful number since it is divisible by the number (70) 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 70394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101347200).

70394240 is an abundant number, since it is smaller than the sum of its proper divisors (132300160).

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

70394240 is a wasteful number, since it uses less digits than its factorization.

70394240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 70394240 is about 8390.1275318078. The cubic root of 70394240 is about 412.9007846378.

The spelling of 70394240 in words is "seventy million, three hundred ninety-four thousand, two hundred forty".