1490061660 has 48 divisors (see below), whose sum is σ = 4224998400. Its totient is φ = 392318784.

The previous prime is 1490061659. The next prime is 1490061667. The reversal of 1490061660 is 661600941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490061667) 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 15 ways as a sum of consecutive naturals, for example, 152440 + ... + 161919.

It is an arithmetic number, because the mean of its divisors is an integer number (88020800).

Almost surely, 2^1490061660 is an apocalyptic number.

1490061660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490061660 is an abundant number, since it is smaller than the sum of its proper divisors (2734936740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1490061660 is a wasteful number, since it uses less digits than its factorization.

1490061660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314450 (or 314448 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1490061660 is about 38601.3168169170. The cubic root of 1490061660 is about 1142.1805141983.

The spelling of 1490061660 in words is "one billion, four hundred ninety million, sixty-one thousand, six hundred sixty".