1520736 has 96 divisors (see below), whose sum is σ = 4773888. Its totient is φ = 414720.

The previous prime is 1520723. The next prime is 1520747. The reversal of 1520736 is 6370251.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 20796 + ... + 20868.

It is an arithmetic number, because the mean of its divisors is an integer number (49728).

2^1520736 is an apocalyptic number.

1520736 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 1520736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2386944).

1520736 is an abundant number, since it is smaller than the sum of its proper divisors (3253152).

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

1520736 is a wasteful number, since it uses less digits than its factorization.

1520736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1520736 is about 1233.1812518847. The cubic root of 1520736 is about 114.9964964276.

Adding to 1520736 its reverse (6370251), we get a palindrome (7890987).

The spelling of 1520736 in words is "one million, five hundred twenty thousand, seven hundred thirty-six".