1669076460 has 36 divisors (see below), whose sum is σ = 5062865808. Its totient is φ = 445087008.

The previous prime is 1669076447. The next prime is 1669076467. The reversal of 1669076460 is 646709661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1669076460² = 5571632458652263200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1669076467) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4636144 + ... + 4636503.

Almost surely, 2^1669076460 is an apocalyptic number.

1669076460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1669076460 is an abundant number, since it is smaller than the sum of its proper divisors (3393789348).

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

1669076460 is a wasteful number, since it uses less digits than its factorization.

1669076460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272662 (or 9272657 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1669076460 is about 40854.3322060219. The cubic root of 1669076460 is about 1186.2022514992.

The spelling of 1669076460 in words is "one billion, six hundred sixty-nine million, seventy-six thousand, four hundred sixty".