1457409 has 8 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 965456.

The previous prime is 1457389. The next prime is 1457411. The reversal of 1457409 is 9047541.

1457409 = 276² + 277² + ... + 293².

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1457409 - 2¹¹ = 1455361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1457419) 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, 954 + ... + 1955.

It is an arithmetic number, because the mean of its divisors is an integer number (244440).

2^1457409 is an apocalyptic number.

It is an amenable number.

1457409 is a deficient number, since it is larger than the sum of its proper divisors (498111).

1457409 is a wasteful number, since it uses less digits than its factorization.

1457409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1457409 is about 1207.2319578275. The cubic root of 1457409 is about 113.3775711578.

The spelling of 1457409 in words is "one million, four hundred fifty-seven thousand, four hundred nine".