38399466 has 64 divisors (see below), whose sum is σ = 92602368. Its totient is φ = 10378368.

The previous prime is 38399461. The next prime is 38399497. The reversal of 38399466 is 66499383.

38399466 is a nontrivial binomial coefficient, being equal to C(8764, 2).

It is not an unprimeable number, because it can be changed into a prime (38399461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122526 + ... + 122838.

It is an arithmetic number, because the mean of its divisors is an integer number (1446912).

Almost surely, 2^38399466 is an apocalyptic number.

38399466 is the 8763-rd triangular number and also the 4382-nd hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38399466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46301184).

38399466 is an abundant number, since it is smaller than the sum of its proper divisors (54202902).

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

38399466 is a wasteful number, since it uses less digits than its factorization.

38399466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its digits is 839808, while the sum is 48.

The square root of 38399466 is about 6196.7302668423. The cubic root of 38399466 is about 337.3715022487.

The spelling of 38399466 in words is "thirty-eight million, three hundred ninety-nine thousand, four hundred sixty-six".