1397204424 has 288 divisors, whose sum is σ = 4967071200. Its totient is φ = 362577600.

The previous prime is 1397204411. The next prime is 1397204443. The reversal of 1397204424 is 4244027931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1280119 + ... + 1281209.

It is an arithmetic number, because the mean of its divisors is an integer number (17246775).

Almost surely, 2^1397204424 is an apocalyptic number.

1397204424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397204424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483535600).

1397204424 is an abundant number, since it is smaller than the sum of its proper divisors (3569866776).

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

1397204424 is a wasteful number, since it uses less digits than its factorization.

1397204424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1397204424 is about 37379.1977441999. The cubic root of 1397204424 is about 1117.9438316299.

The spelling of 1397204424 in words is "one billion, three hundred ninety-seven million, two hundred four thousand, four hundred twenty-four".