1490767785 has 48 divisors (see below), whose sum is σ = 2794965264. Its totient is φ = 730699776.

The previous prime is 1490767717. The next prime is 1490767807. The reversal of 1490767785 is 5877670941.

1490767785 is a `hidden beast` number, since 1 + 490 + 7 + 6 + 77 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 28164249 + 1462603536 = 5307^2 + 38244^2 .

It is not a de Polignac number, because 1490767785 - 2¹³ = 1490759593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130837 + ... + 141773.

It is an arithmetic number, because the mean of its divisors is an integer number (58228443).

Almost surely, 2^1490767785 is an apocalyptic number.

1490767785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1490767785 is a deficient number, since it is larger than the sum of its proper divisors (1304197479).

1490767785 is a wasteful number, since it uses less digits than its factorization.

1490767785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11194 (or 11191 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The square root of 1490767785 is about 38610.4621184466. The cubic root of 1490767785 is about 1142.3609082651.

The spelling of 1490767785 in words is "one billion, four hundred ninety million, seven hundred sixty-seven thousand, seven hundred eighty-five".