1542434 has 4 divisors (see below), whose sum is σ = 2313654. Its totient is φ = 771216.

The previous prime is 1542433. The next prime is 1542451. The reversal of 1542434 is 4342451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4342451 = 109 ⋅39839.

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 299209 = 1115^2 + 547^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1542433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385607 + ... + 385610.

2^1542434 is an apocalyptic number.

1542434 is a deficient number, since it is larger than the sum of its proper divisors (771220).

1542434 is an equidigital number, since it uses as much as digits as its factorization.

1542434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771219.

The product of its digits is 1920, while the sum is 23.

The square root of 1542434 is about 1241.9476639537. The cubic root of 1542434 is about 115.5408424863.

Adding to 1542434 its reverse (4342451), we get a palindrome (5884885).

The spelling of 1542434 in words is "one million, five hundred forty-two thousand, four hundred thirty-four".