1493946490 has 8 divisors (see below), whose sum is σ = 2689103700. Its totient is φ = 597578592.

The previous prime is 1493946481. The next prime is 1493946499. The reversal of 1493946490 is 946493941.

It is an interprime number because it is at equal distance from previous prime (1493946481) and next prime (1493946499).

It can be written as a sum of positive squares in 2 ways, for example, as 1492972321 + 974169 = 38639^2 + 987^2 .

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

It is a super-2 number, since 2×1493946490² = 4463752229966640200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1493946499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74697315 + ... + 74697334.

Almost surely, 2^1493946490 is an apocalyptic number.

1493946490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1493946490 is a deficient number, since it is larger than the sum of its proper divisors (1195157210).

1493946490 is a wasteful number, since it uses less digits than its factorization.

1493946490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149394656.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 1493946490 is about 38651.6039770667. The cubic root of 1493946490 is about 1143.1722688075.

The spelling of 1493946490 in words is "one billion, four hundred ninety-three million, nine hundred forty-six thousand, four hundred ninety".