70440328 has 32 divisors (see below), whose sum is σ = 153020160. Its totient is φ = 29773440.

The previous prime is 70440323. The next prime is 70440371. The reversal of 70440328 is 82304407.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 70440296 and 70440305.

It is not an unprimeable number, because it can be changed into a prime (70440323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4528 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (4781880).

Almost surely, 2^70440328 is an apocalyptic number.

It is an amenable number.

70440328 is an abundant number, since it is smaller than the sum of its proper divisors (82579832).

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

70440328 is a wasteful number, since it uses less digits than its factorization.

70440328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17317 (or 17313 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 70440328 is about 8392.8736437528. The cubic root of 70440328 is about 412.9908754362.

The spelling of 70440328 in words is "seventy million, four hundred forty thousand, three hundred twenty-eight".