42774447400 has 48 divisors (see below), whose sum is σ = 99701280540. Its totient is φ = 17066649600.

The previous prime is 42774447341. The next prime is 42774447421. The reversal of 42774447400 is 474447724.

It can be written as a sum of positive squares in 6 ways, for example, as 21826516644 + 20947930756 = 147738^2 + 144734^2 .

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 11 ways as a sum of consecutive naturals, for example, 189961 + ... + 348760.

Almost surely, 2^42774447400 is an apocalyptic number.

42774447400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42774447400 is an abundant number, since it is smaller than the sum of its proper divisors (56926833140).

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

42774447400 is a wasteful number, since it uses less digits than its factorization.

42774447400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539134 (or 539125 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 43.

The spelling of 42774447400 in words is "forty-two billion, seven hundred seventy-four million, four hundred forty-seven thousand, four hundred".