1353491990 has 16 divisors (see below), whose sum is σ = 2467126080. Its totient is φ = 534543360.

The previous prime is 1353491987. The next prime is 1353492013. The reversal of 1353491990 is 991943531.

It is a congruent number.

It is an unprimeable number.

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, 855851 + ... + 857430.

It is an arithmetic number, because the mean of its divisors is an integer number (154195380).

Almost surely, 2^1353491990 is an apocalyptic number.

1353491990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1353491990 is a deficient number, since it is larger than the sum of its proper divisors (1113634090).

1353491990 is a wasteful number, since it uses less digits than its factorization.

1353491990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713367.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 1353491990 is about 36789.8354168648. The cubic root of 1353491990 is about 1106.1615625515.

The spelling of 1353491990 in words is "one billion, three hundred fifty-three million, four hundred ninety-one thousand, nine hundred ninety".