15386000490 has 384 divisors, whose sum is σ = 49198752000. Its totient is φ = 3410491392.

The previous prime is 15386000459. The next prime is 15386000491. The reversal of 15386000490 is 9400068351.

15386000490 is a `hidden beast` number, since 1 + 5 + 3 + 8 + 600 + 0 + 49 + 0 = 666.

15386000490 is a nontrivial binomial coefficient, being equal to C(175420, 2).

It is a super-2 number, since 2×15386000490² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15386000491) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 85955221 + ... + 85955399.

It is an arithmetic number, because the mean of its divisors is an integer number (128121750).

Almost surely, 2^15386000490 is an apocalyptic number.

15386000490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15386000490 is the 175419-th triangular number and also the 87710-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15386000490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24599376000).

15386000490 is an abundant number, since it is smaller than the sum of its proper divisors (33812751510).

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

15386000490 is a wasteful number, since it uses less digits than its factorization.

15386000490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 15386000490 in words is "fifteen billion, three hundred eighty-six million, four hundred ninety", and thus it is an aban number.