70440423 has 16 divisors (see below), whose sum is σ = 95133696. Its totient is φ = 46357920.

The previous prime is 70440397. The next prime is 70440427. The reversal of 70440423 is 32404407.

It is not a de Polignac number, because 70440423 - 2¹³ = 70432231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70440393 and 70440402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70440427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111318 + ... + 111948.

It is an arithmetic number, because the mean of its divisors is an integer number (5945856).

Almost surely, 2^70440423 is an apocalyptic number.

70440423 is a deficient number, since it is larger than the sum of its proper divisors (24693273).

70440423 is a wasteful number, since it uses less digits than its factorization.

70440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 70440423 is about 8392.8793033142. The cubic root of 70440423 is about 412.9910610975.

The spelling of 70440423 in words is "seventy million, four hundred forty thousand, four hundred twenty-three".