70440300 has 144 divisors (see below), whose sum is σ = 258872320. Its totient is φ = 16096320.

The previous prime is 70440281. The next prime is 70440301. The reversal of 70440300 is 304407.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (70440301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17037 + ... + 20763.

Almost surely, 2^70440300 is an apocalyptic number.

70440300 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 70440300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129436160).

70440300 is an abundant number, since it is smaller than the sum of its proper divisors (188432020).

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

70440300 is a wasteful number, since it uses less digits than its factorization.

70440300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757 (or 3744 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 70440300 is about 8392.8719756708. The cubic root of 70440300 is about 412.9908207150.

Adding to 70440300 its reverse (304407), we get a palindrome (70744707).

The spelling of 70440300 in words is "seventy million, four hundred forty thousand, three hundred".