70461440 has 96 divisors (see below), whose sum is σ = 193415040. Its totient is φ = 24133632.

The previous prime is 70461409. The next prime is 70461449. The reversal of 70461440 is 4416407.

It is not an unprimeable number, because it can be changed into a prime (70461449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 71189 + ... + 72171.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^70461440 is an apocalyptic number.

70461440 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 70461440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96707520).

70461440 is an abundant number, since it is smaller than the sum of its proper divisors (122953600).

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

70461440 is an equidigital number, since it uses as much as digits as its factorization.

70461440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70461440 is about 8394.1312832240. The cubic root of 70461440 is about 413.0321311235.

Adding to 70461440 its reverse (4416407), we get a palindrome (74877847).

The spelling of 70461440 in words is "seventy million, four hundred sixty-one thousand, four hundred forty".