1552290 has 32 divisors (see below), whose sum is σ = 3792960. Its totient is φ = 406464.

The previous prime is 1552289. The next prime is 1552297. The reversal of 1552290 is 922551.

It is a self number, because there is not a number n which added to its sum of digits gives 1552290.

It is not an unprimeable number, because it can be changed into a prime (1552297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332 + ... + 2208.

It is an arithmetic number, because the mean of its divisors is an integer number (118530).

2^1552290 is an apocalyptic number.

1552290 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 1552290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896480).

1552290 is an abundant number, since it is smaller than the sum of its proper divisors (2240670).

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

1552290 is a wasteful number, since it uses less digits than its factorization.

1552290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1552290 is about 1245.9093064906. The cubic root of 1552290 is about 115.7864183259.

The spelling of 1552290 in words is "one million, five hundred fifty-two thousand, two hundred ninety".