70040441 has 4 divisors (see below), whose sum is σ = 73726800. Its totient is φ = 66354084.

The previous prime is 70040431. The next prime is 70040449. The reversal of 70040441 is 14404007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14404007 = 3089 ⋅4663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70040441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70040449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843151 + ... + 1843188.

It is an arithmetic number, because the mean of its divisors is an integer number (18431700).

Almost surely, 2^70040441 is an apocalyptic number.

It is an amenable number.

70040441 is a deficient number, since it is larger than the sum of its proper divisors (3686359).

70040441 is a wasteful number, since it uses less digits than its factorization.

70040441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686358.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 70040441 is about 8369.0167283857. The cubic root of 70040441 is about 412.2078808440.

Adding to 70040441 its reverse (14404007), we get a palindrome (84444448).

The spelling of 70040441 in words is "seventy million, forty thousand, four hundred forty-one".