38151894 has 64 divisors (see below), whose sum is σ = 89123328. Its totient is φ = 10771200.

The previous prime is 38151833. The next prime is 38151913. The reversal of 38151894 is 49815183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61932 + ... + 62544.

It is an arithmetic number, because the mean of its divisors is an integer number (1392552).

Almost surely, 2^38151894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38151894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44561664).

38151894 is an abundant number, since it is smaller than the sum of its proper divisors (50971434).

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

38151894 is a wasteful number, since it uses less digits than its factorization.

38151894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its digits is 34560, while the sum is 39.

The square root of 38151894 is about 6176.7219461459. The cubic root of 38151894 is about 336.6448959334.

The spelling of 38151894 in words is "thirty-eight million, one hundred fifty-one thousand, eight hundred ninety-four".