1522730 has 32 divisors (see below), whose sum is σ = 3041280. Its totient is φ = 544320.

The previous prime is 1522727. The next prime is 1522733. The reversal of 1522730 is 372251.

It is an interprime number because it is at equal distance from previous prime (1522727) and next prime (1522733).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1522733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11927 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2^1522730 is an apocalyptic number.

1522730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1522730 is a deficient number, since it is larger than the sum of its proper divisors (1518550).

1522730 is a wasteful number, since it uses less digits than its factorization.

1522730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1522730 is about 1233.9894651090. The cubic root of 1522730 is about 115.0467358874.

Adding to 1522730 its reverse (372251), we get a palindrome (1894981).

It can be divided in two parts, 152 and 2730, that added together give a palindrome (2882).

The spelling of 1522730 in words is "one million, five hundred twenty-two thousand, seven hundred thirty".