1535490 has 96 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 364320.

The previous prime is 1535489. The next prime is 1535497. The reversal of 1535490 is 945351.

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

It is an Ulam number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1535497) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32647 + ... + 32693.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2^1535490 is an apocalyptic number.

1535490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1535490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).

1535490 is an abundant number, since it is smaller than the sum of its proper divisors (3060990).

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

1535490 is a wasteful number, since it uses less digits than its factorization.

1535490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1535490 is about 1239.1489014642. The cubic root of 1535490 is about 115.3671942929.

It can be divided in two parts, 1535 and 490, that added together give a square (2025 = 45²).

The spelling of 1535490 in words is "one million, five hundred thirty-five thousand, four hundred ninety".