1299536 has 40 divisors (see below), whose sum is σ = 2958144. Its totient is φ = 541440.

The previous prime is 1299533. The next prime is 1299541. The reversal of 1299536 is 6359921.

1299536 = T₂₃₁ + T₂₃₂ + ... + T₂₇₁.

It is a junction number, because it is equal to n+sod(n) for n = 1299496 and 1299505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4451 + ... + 4733.

2^1299536 is an apocalyptic number.

1299536 is a gapful number since it is divisible by the number (16) 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 1299536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479072).

1299536 is an abundant number, since it is smaller than the sum of its proper divisors (1658608).

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

1299536 is a wasteful number, since it uses less digits than its factorization.

1299536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 333 counting only the distinct ones).

The product of its digits is 14580, while the sum is 35.

The square root of 1299536 is about 1139.9719294790. The cubic root of 1299536 is about 109.1263019841.

It can be divided in two parts, 12995 and 36, that added together give a palindrome (13031).

The spelling of 1299536 in words is "one million, two hundred ninety-nine thousand, five hundred thirty-six".