1521434 has 8 divisors (see below), whose sum is σ = 2299968. Its totient is φ = 754780.

The previous prime is 1521397. The next prime is 1521479. The reversal of 1521434 is 4341251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1521434² = 4629522832712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642 + ... + 3165.

It is an arithmetic number, because the mean of its divisors is an integer number (287496).

2^1521434 is an apocalyptic number.

1521434 is a deficient number, since it is larger than the sum of its proper divisors (778534).

1521434 is a wasteful number, since it uses less digits than its factorization.

1521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940.

The product of its digits is 480, while the sum is 20.

The square root of 1521434 is about 1233.4642272883. The cubic root of 1521434 is about 115.0140877511.

Adding to 1521434 its reverse (4341251), we get a palindrome (5862685).

The spelling of 1521434 in words is "one million, five hundred twenty-one thousand, four hundred thirty-four".