38401398 has 96 divisors (see below), whose sum is σ = 103749120. Its totient is φ = 10478160.

The previous prime is 38401393. The next prime is 38401399. The reversal of 38401398 is 89310483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38401393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60543 + ... + 61173.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^38401398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38401398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51874560).

38401398 is an abundant number, since it is smaller than the sum of its proper divisors (65347722).

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

38401398 is a wasteful number, since it uses less digits than its factorization.

38401398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 38401398 is about 6196.8861535452. The cubic root of 38401398 is about 337.3771602337.

The spelling of 38401398 in words is "thirty-eight million, four hundred one thousand, three hundred ninety-eight".