1228474392 has 64 divisors (see below), whose sum is σ = 3105907200. Its totient is φ = 404889600.

The previous prime is 1228474361. The next prime is 1228474397. The reversal of 1228474392 is 2934748221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228474397) 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, 930709 + ... + 932027.

It is an arithmetic number, because the mean of its divisors is an integer number (48529800).

Almost surely, 2^1228474392 is an apocalyptic number.

1228474392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1228474392 is an abundant number, since it is smaller than the sum of its proper divisors (1877432808).

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

1228474392 is a wasteful number, since it uses less digits than its factorization.

1228474392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736 (or 1732 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 1228474392 is about 35049.5990276636. The cubic root of 1228474392 is about 1070.9981055570.

The spelling of 1228474392 in words is "one billion, two hundred twenty-eight million, four hundred seventy-four thousand, three hundred ninety-two".