13092840 has 112 divisors (see below), whose sum is σ = 44266500. Its totient is φ = 3483648.

The previous prime is 13092829. The next prime is 13092869. The reversal of 13092840 is 4829031.

It can be written as a sum of positive squares in 2 ways, for example, as 13089924 + 2916 = 3618^2 + 54^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28936 + ... + 29384.

Almost surely, 2^13092840 is an apocalyptic number.

13092840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13092840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22133250).

13092840 is an abundant number, since it is smaller than the sum of its proper divisors (31173660).

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

13092840 is an equidigital number, since it uses as much as digits as its factorization.

13092840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13092840 is about 3618.4029626342. The cubic root of 13092840 is about 235.6918798065.

The spelling of 13092840 in words is "thirteen million, ninety-two thousand, eight hundred forty".