1490036421 has 8 divisors (see below), whose sum is σ = 2050802944. Its totient is φ = 961313760.

The previous prime is 1490036413. The next prime is 1490036453. The reversal of 1490036421 is 1246300941.

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

It is not a de Polignac number, because 1490036421 - 2³ = 1490036413 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 (1490036521) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8010856 + ... + 8011041.

It is an arithmetic number, because the mean of its divisors is an integer number (256350368).

Almost surely, 2^1490036421 is an apocalyptic number.

It is an amenable number.

1490036421 is a deficient number, since it is larger than the sum of its proper divisors (560766523).

1490036421 is a wasteful number, since it uses less digits than its factorization.

1490036421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021931.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1490036421 is about 38600.9898966335. The cubic root of 1490036421 is about 1142.1740653249.

The spelling of 1490036421 in words is "one billion, four hundred ninety million, thirty-six thousand, four hundred twenty-one".