1491430 has 8 divisors (see below), whose sum is σ = 2684592. Its totient is φ = 596568.

The previous prime is 1491421. The next prime is 1491437. The reversal of 1491430 is 341941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491437) 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 3 ways as a sum of consecutive naturals, for example, 74562 + ... + 74581.

It is an arithmetic number, because the mean of its divisors is an integer number (335574).

2^1491430 is an apocalyptic number.

1491430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1491430 is a deficient number, since it is larger than the sum of its proper divisors (1193162).

1491430 is a wasteful number, since it uses less digits than its factorization.

1491430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149150.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1491430 is about 1221.2411719231. The cubic root of 1491430 is about 114.2530032871.

The spelling of 1491430 in words is "one million, four hundred ninety-one thousand, four hundred thirty".