70456140 has 144 divisors (see below), whose sum is σ = 224078400. Its totient is φ = 17902080.

The previous prime is 70456129. The next prime is 70456151. The reversal of 70456140 is 4165407.

70456140 is a `hidden beast` number, since 7 + 0 + 45 + 614 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (70456129) and next prime (70456151).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 472786 + ... + 472934.

It is an arithmetic number, because the mean of its divisors is an integer number (1556100).

Almost surely, 2^70456140 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 70456140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112039200).

70456140 is an abundant number, since it is smaller than the sum of its proper divisors (153622260).

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

70456140 is a wasteful number, since it uses less digits than its factorization.

70456140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70456140 is about 8393.8155805331. The cubic root of 70456140 is about 413.0217749855.

The spelling of 70456140 in words is "seventy million, four hundred fifty-six thousand, one hundred forty".