383473440 has 288 divisors, whose sum is σ = 1552037760. Its totient is φ = 87588864.

The previous prime is 383473421. The next prime is 383473463. The reversal of 383473440 is 44374383.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a junction number, because it is equal to n+sod(n) for n = 383473395 and 383473404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 271456 + ... + 272864.

It is an arithmetic number, because the mean of its divisors is an integer number (5389020).

Almost surely, 2^383473440 is an apocalyptic number.

383473440 is a gapful number since it is divisible by the number (30) 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 383473440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776018880).

383473440 is an abundant number, since it is smaller than the sum of its proper divisors (1168564320).

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

383473440 is a wasteful number, since it uses less digits than its factorization.

383473440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 383473440 is about 19582.4778820250. The cubic root of 383473440 is about 726.5158549451.

The spelling of 383473440 in words is "three hundred eighty-three million, four hundred seventy-three thousand, four hundred forty".