1461376220 has 12 divisors (see below), whose sum is σ = 3068890104. Its totient is φ = 584550480.

The previous prime is 1461376211. The next prime is 1461376247. The reversal of 1461376220 is 226731641.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 36534386 + ... + 36534425.

It is an arithmetic number, because the mean of its divisors is an integer number (255740842).

Almost surely, 2^1461376220 is an apocalyptic number.

1461376220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1461376220 is an abundant number, since it is smaller than the sum of its proper divisors (1607513884).

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

1461376220 is a wasteful number, since it uses less digits than its factorization.

1461376220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73068820 (or 73068818 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1461376220 is about 38227.9507690381. The cubic root of 1461376220 is about 1134.8035316230.

The spelling of 1461376220 in words is "one billion, four hundred sixty-one million, three hundred seventy-six thousand, two hundred twenty".