15982494 has 32 divisors (see below), whose sum is σ = 35195904. Its totient is φ = 4798080.

The previous prime is 15982489. The next prime is 15982501. The reversal of 15982494 is 49428951.

It is a super-2 number, since 2×15982494² = 510880228920072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6387 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (1099872).

Almost surely, 2^15982494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15982494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17597952).

15982494 is an abundant number, since it is smaller than the sum of its proper divisors (19213410).

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

15982494 is a wasteful number, since it uses less digits than its factorization.

15982494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its digits is 103680, while the sum is 42.

The square root of 15982494 is about 3997.8111511176. The cubic root of 15982494 is about 251.8922757004.

The spelling of 15982494 in words is "fifteen million, nine hundred eighty-two thousand, four hundred ninety-four".