1229472394 has 8 divisors (see below), whose sum is σ = 1862468388. Its totient is φ = 608649600.

The previous prime is 1229472379. The next prime is 1229472401. The reversal of 1229472394 is 4932749221.

It can be written as a sum of positive squares in 2 ways, for example, as 1228853025 + 619369 = 35055^2 + 787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1229472394.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043047 + ... + 3043450.

Almost surely, 2^1229472394 is an apocalyptic number.

1229472394 is a deficient number, since it is larger than the sum of its proper divisors (632995994).

1229472394 is a wasteful number, since it uses less digits than its factorization.

1229472394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086600.

The product of its digits is 217728, while the sum is 43.

The square root of 1229472394 is about 35063.8331333013. The cubic root of 1229472394 is about 1071.2880502627.

The spelling of 1229472394 in words is "one billion, two hundred twenty-nine million, four hundred seventy-two thousand, three hundred ninety-four".