1172449870 has 16 divisors (see below), whose sum is σ = 2113196688. Its totient is φ = 468360640.

The previous prime is 1172449847. The next prime is 1172449879. The reversal of 1172449870 is 789442711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172449879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69424 + ... + 84643.

It is an arithmetic number, because the mean of its divisors is an integer number (132074793).

Almost surely, 2^1172449870 is an apocalyptic number.

1172449870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1172449870 is a deficient number, since it is larger than the sum of its proper divisors (940746818).

1172449870 is a wasteful number, since it uses less digits than its factorization.

1172449870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154835.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1172449870 is about 34241.0553283628. The cubic root of 1172449870 is about 1054.4631995822.

The spelling of 1172449870 in words is "one billion, one hundred seventy-two million, four hundred forty-nine thousand, eight hundred seventy".