945012780 has 36 divisors (see below), whose sum is σ = 2866539312. Its totient is φ = 252003360.

The previous prime is 945012749. The next prime is 945012797. The reversal of 945012780 is 87210549.

945012780 is a `hidden beast` number, since 9 + 450 + 127 + 80 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2624856 + ... + 2625215.

It is an arithmetic number, because the mean of its divisors is an integer number (79626092).

Almost surely, 2^945012780 is an apocalyptic number.

945012780 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

945012780 is an abundant number, since it is smaller than the sum of its proper divisors (1921526532).

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

945012780 is a wasteful number, since it uses less digits than its factorization.

945012780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250086 (or 5250081 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 945012780 is about 30741.0601638916. The cubic root of 945012780 is about 981.3243167644.

The spelling of 945012780 in words is "nine hundred forty-five million, twelve thousand, seven hundred eighty".