1522401 has 8 divisors (see below), whose sum is σ = 2149344. Its totient is φ = 955200.

The previous prime is 1522399. The next prime is 1522427. The reversal of 1522401 is 1042251.

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

It is not a de Polignac number, because 1522401 - 2¹ = 1522399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1522201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14875 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (268668).

2^1522401 is an apocalyptic number.

It is an amenable number.

1522401 is a deficient number, since it is larger than the sum of its proper divisors (626943).

1522401 is a wasteful number, since it uses less digits than its factorization.

1522401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29871.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1522401 is about 1233.8561504487. The cubic root of 1522401 is about 115.0384496510.

Adding to 1522401 its reverse (1042251), we get a palindrome (2564652).

The spelling of 1522401 in words is "one million, five hundred twenty-two thousand, four hundred one".