1493902390 has 16 divisors (see below), whose sum is σ = 2689466832. Its totient is φ = 597462624.

The previous prime is 1493902351. The next prime is 1493902391. The reversal of 1493902390 is 932093941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493902391) 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, 103072 + ... + 116668.

It is an arithmetic number, because the mean of its divisors is an integer number (168091677).

Almost surely, 2^1493902390 is an apocalyptic number.

1493902390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1493902390 is a deficient number, since it is larger than the sum of its proper divisors (1195564442).

1493902390 is a wasteful number, since it uses less digits than its factorization.

1493902390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24591.

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

The square root of 1493902390 is about 38651.0334920038. The cubic root of 1493902390 is about 1143.1610202134.

The spelling of 1493902390 in words is "one billion, four hundred ninety-three million, nine hundred two thousand, three hundred ninety".