1490534391 has 8 divisors (see below), whose sum is σ = 2001677440. Its totient is φ = 986540472.

The previous prime is 1490534387. The next prime is 1490534411. The reversal of 1490534391 is 1934350941.

It is a happy number.

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

It is not a de Polignac number, because 1490534391 - 2² = 1490534387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490534341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786795 + ... + 1787628.

It is an arithmetic number, because the mean of its divisors is an integer number (250209680).

Almost surely, 2^1490534391 is an apocalyptic number.

1490534391 is a deficient number, since it is larger than the sum of its proper divisors (511143049).

1490534391 is a wasteful number, since it uses less digits than its factorization.

1490534391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574565.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1490534391 is about 38607.4395809927. The cubic root of 1490534391 is about 1142.3012893002.

The spelling of 1490534391 in words is "one billion, four hundred ninety million, five hundred thirty-four thousand, three hundred ninety-one".