1540414 has 4 divisors (see below), whose sum is σ = 2310624. Its totient is φ = 770206.

The previous prime is 1540403. The next prime is 1540423. The reversal of 1540414 is 4140451.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1540391 and 1540400.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 385102 + ... + 385105.

It is an arithmetic number, because the mean of its divisors is an integer number (577656).

2^1540414 is an apocalyptic number.

1540414 is a deficient number, since it is larger than the sum of its proper divisors (770210).

1540414 is an equidigital number, since it uses as much as digits as its factorization.

1540414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770209.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1540414 is about 1241.1341587435. The cubic root of 1540414 is about 115.4903823129.

Adding to 1540414 its reverse (4140451), we get a palindrome (5680865).

The spelling of 1540414 in words is "one million, five hundred forty thousand, four hundred fourteen".