20149382 has 8 divisors (see below), whose sum is σ = 32971752. Its totient is φ = 9158800.

The previous prime is 20149361. The next prime is 20149391. The reversal of 20149382 is 28394102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457919 + ... + 457962.

It is an arithmetic number, because the mean of its divisors is an integer number (4121469).

Almost surely, 2^20149382 is an apocalyptic number.

20149382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20149382 is a deficient number, since it is larger than the sum of its proper divisors (12822370).

20149382 is a wasteful number, since it uses less digits than its factorization.

20149382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915894.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20149382 is about 4488.8063001203. The cubic root of 20149382 is about 272.1158946001.

The spelling of 20149382 in words is "twenty million, one hundred forty-nine thousand, three hundred eighty-two".