1490749945 has 16 divisors (see below), whose sum is σ = 1883819520. Its totient is φ = 1130272704.

The previous prime is 1490749919. The next prime is 1490749951. The reversal of 1490749945 is 5499470941.

It is a cyclic number.

It is not a de Polignac number, because 1490749945 - 2⁵ = 1490749913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1490749892 and 1490749901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46929 + ... + 71998.

It is an arithmetic number, because the mean of its divisors is an integer number (117738720).

Almost surely, 2^1490749945 is an apocalyptic number.

It is an amenable number.

1490749945 is a deficient number, since it is larger than the sum of its proper divisors (393069575).

1490749945 is a wasteful number, since it uses less digits than its factorization.

1490749945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119064.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1490749945 is about 38610.2310922895. The cubic root of 1490749945 is about 1142.3563513739.

The spelling of 1490749945 in words is "one billion, four hundred ninety million, seven hundred forty-nine thousand, nine hundred forty-five".