546778380 has 48 divisors (see below), whose sum is σ = 1556087904. Its totient is φ = 143416320.

The previous prime is 546778367. The next prime is 546778387. The reversal of 546778380 is 83877645.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (546778387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71037 + ... + 78356.

It is an arithmetic number, because the mean of its divisors is an integer number (32418498).

Almost surely, 2^546778380 is an apocalyptic number.

It is an amenable number.

546778380 is an abundant number, since it is smaller than the sum of its proper divisors (1009309524).

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

546778380 is a wasteful number, since it uses less digits than its factorization.

546778380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149466 (or 149464 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 546778380 is about 23383.2927535880. The cubic root of 546778380 is about 817.7184146456.

The spelling of 546778380 in words is "five hundred forty-six million, seven hundred seventy-eight thousand, three hundred eighty".