1490239390 has 16 divisors (see below), whose sum is σ = 2744813808. Its totient is φ = 582232896.

The previous prime is 1490239357. The next prime is 1490239451. The reversal of 1490239390 is 939320941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732407 + ... + 1733266.

It is an arithmetic number, because the mean of its divisors is an integer number (171550863).

Almost surely, 2^1490239390 is an apocalyptic number.

1490239390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1490239390 is a deficient number, since it is larger than the sum of its proper divisors (1254574418).

1490239390 is a wasteful number, since it uses less digits than its factorization.

1490239390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465723.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 1490239390 is about 38603.6188718105. The cubic root of 1490239390 is about 1142.2259243263.

The spelling of 1490239390 in words is "one billion, four hundred ninety million, two hundred thirty-nine thousand, three hundred ninety".