1147421394 has 48 divisors (see below), whose sum is σ = 2846975040. Its totient is φ = 327172320.

The previous prime is 1147421389. The next prime is 1147421399. The reversal of 1147421394 is 4931247411.

1147421394 is a `hidden beast` number, since 1 + 147 + 421 + 3 + 94 = 666.

It is an interprime number because it is at equal distance from previous prime (1147421389) and next prime (1147421399).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1147421399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55189 + ... + 73079.

It is an arithmetic number, because the mean of its divisors is an integer number (59311980).

Almost surely, 2^1147421394 is an apocalyptic number.

1147421394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1147421394 is an abundant number, since it is smaller than the sum of its proper divisors (1699553646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1147421394 is a wasteful number, since it uses less digits than its factorization.

1147421394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18415 (or 18412 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1147421394 is about 33873.6091079767. The cubic root of 1147421394 is about 1046.9059009089.

The spelling of 1147421394 in words is "one billion, one hundred forty-seven million, four hundred twenty-one thousand, three hundred ninety-four".