1466779820 has 24 divisors (see below), whose sum is σ = 3360259728. Its totient is φ = 533374400.

The previous prime is 1466779753. The next prime is 1466779859. The reversal of 1466779820 is 289776641.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3333371 + ... + 3333810.

It is an arithmetic number, because the mean of its divisors is an integer number (140010822).

Almost surely, 2^1466779820 is an apocalyptic number.

1466779820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1466779820 is an abundant number, since it is smaller than the sum of its proper divisors (1893479908).

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

1466779820 is a wasteful number, since it uses less digits than its factorization.

1466779820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667201 (or 6667199 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 1466779820 is about 38298.5615917883. The cubic root of 1466779820 is about 1136.2004983592.

The spelling of 1466779820 in words is "one billion, four hundred sixty-six million, seven hundred seventy-nine thousand, eight hundred twenty".