47351642 has 16 divisors (see below), whose sum is σ = 76635720. Its totient is φ = 21813312.

The previous prime is 47351627. The next prime is 47351659. The reversal of 47351642 is 24615374.

47351642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29365561 + 17986081 = 5419^2 + 4241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47351599 and 47351608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15584 + ... + 18372.

Almost surely, 2^47351642 is an apocalyptic number.

47351642 is a deficient number, since it is larger than the sum of its proper divisors (29284078).

47351642 is a wasteful number, since it uses less digits than its factorization.

47351642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457.

The product of its digits is 20160, while the sum is 32.

The square root of 47351642 is about 6881.2529382373. The cubic root of 47351642 is about 361.7803832585.

The spelling of 47351642 in words is "forty-seven million, three hundred fifty-one thousand, six hundred forty-two".