1457490 has 32 divisors (see below), whose sum is σ = 3683520. Its totient is φ = 368064.

The previous prime is 1457483. The next prime is 1457497. The reversal of 1457490 is 947541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1457483) and next prime (1457497).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1457497) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (115110).

2^1457490 is an apocalyptic number.

1457490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1457490 is an abundant number, since it is smaller than the sum of its proper divisors (2226030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1457490 is a wasteful number, since it uses less digits than its factorization.

1457490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

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

The square root of 1457490 is about 1207.2655051810. The cubic root of 1457490 is about 113.3796715549.

The spelling of 1457490 in words is "one million, four hundred fifty-seven thousand, four hundred ninety".