47277442 has 16 divisors (see below), whose sum is σ = 75782520. Its totient is φ = 22042368.

The previous prime is 47277437. The next prime is 47277457. The reversal of 47277442 is 24477274.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46771921 + 505521 = 6839^2 + 711^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673 + ... + 10084.

Almost surely, 2^47277442 is an apocalyptic number.

47277442 is a deficient number, since it is larger than the sum of its proper divisors (28505078).

47277442 is a wasteful number, since it uses less digits than its factorization.

47277442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12885.

The product of its digits is 87808, while the sum is 37.

The square root of 47277442 is about 6875.8593644722. The cubic root of 47277442 is about 361.5913145723.

The spelling of 47277442 in words is "forty-seven million, two hundred seventy-seven thousand, four hundred forty-two".