70189449 has 16 divisors (see below), whose sum is σ = 102242304. Its totient is φ = 42477200.

The previous prime is 70189433. The next prime is 70189451. The reversal of 70189449 is 94498107.

It is not a de Polignac number, because 70189449 - 2⁴ = 70189433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70189449.

It is not an unprimeable number, because it can be changed into a prime (70189949) 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, 32992 + ... + 35054.

It is an arithmetic number, because the mean of its divisors is an integer number (6390144).

Almost surely, 2^70189449 is an apocalyptic number.

It is an amenable number.

70189449 is a deficient number, since it is larger than the sum of its proper divisors (32052855).

70189449 is a wasteful number, since it uses less digits than its factorization.

70189449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 70189449 is about 8377.9143585978. The cubic root of 70189449 is about 412.4999919192.

The spelling of 70189449 in words is "seventy million, one hundred eighty-nine thousand, four hundred forty-nine".