70380431 has 16 divisors (see below), whose sum is σ = 78357888. Its totient is φ = 62680800.

The previous prime is 70380421. The next prime is 70380433. The reversal of 70380431 is 13408307.

It is a cyclic number.

It is not a de Polignac number, because 70380431 - 2⁶ = 70380367 is a prime.

It is a super-2 number, since 2×70380431² = 9906810135491522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70380431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70380433) 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, 143096 + ... + 143586.

It is an arithmetic number, because the mean of its divisors is an integer number (4897368).

Almost surely, 2^70380431 is an apocalyptic number.

70380431 is a deficient number, since it is larger than the sum of its proper divisors (7977457).

70380431 is a wasteful number, since it uses less digits than its factorization.

70380431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70380431 is about 8389.3045599740. The cubic root of 70380431 is about 412.8737837553.

Adding to 70380431 its reverse (13408307), we get a palindrome (83788738).

The spelling of 70380431 in words is "seventy million, three hundred eighty thousand, four hundred thirty-one".