1490493747 has 4 divisors (see below), whose sum is σ = 1987325000. Its totient is φ = 993662496.

The previous prime is 1490493727. The next prime is 1490493811. The reversal of 1490493747 is 7473940941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7473940941 = 3 ⋅2491313647.

It is not a de Polignac number, because 1490493747 - 2⁷ = 1490493619 is a prime.

It is a super-2 number, since 2×1490493747² = 4443143219692200018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1490493696 and 1490493705.

It is not an unprimeable number, because it can be changed into a prime (1490493707) 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, 248415622 + ... + 248415627.

It is an arithmetic number, because the mean of its divisors is an integer number (496831250).

Almost surely, 2^1490493747 is an apocalyptic number.

1490493747 is a deficient number, since it is larger than the sum of its proper divisors (496831253).

1490493747 is an equidigital number, since it uses as much as digits as its factorization.

1490493747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496831252.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 1490493747 is about 38606.9132021714. The cubic root of 1490493747 is about 1142.2909064210.

The spelling of 1490493747 in words is "one billion, four hundred ninety million, four hundred ninety-three thousand, seven hundred forty-seven".