1457402 has 4 divisors (see below), whose sum is σ = 2186106. Its totient is φ = 728700.

The previous prime is 1457389. The next prime is 1457411. The reversal of 1457402 is 2047541.

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

It can be written as a sum of positive squares in only one way, i.e., 1413721 + 43681 = 1189^2 + 209^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364349 + ... + 364352.

2^1457402 is an apocalyptic number.

1457402 is a deficient number, since it is larger than the sum of its proper divisors (728704).

1457402 is an equidigital number, since it uses as much as digits as its factorization.

1457402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728703.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1457402 is about 1207.2290586297. The cubic root of 1457402 is about 113.3773896383.

The spelling of 1457402 in words is "one million, four hundred fifty-seven thousand, four hundred two".