47490434 has 4 divisors (see below), whose sum is σ = 71235654. Its totient is φ = 23745216.

The previous prime is 47490413. The next prime is 47490449. The reversal of 47490434 is 43409474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43409474 = 2 ⋅21704737.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 2640625 = 6697^2 + 1625^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47490394 and 47490403.

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 as a sum of consecutive naturals, namely, 11872607 + ... + 11872610.

Almost surely, 2^47490434 is an apocalyptic number.

47490434 is a deficient number, since it is larger than the sum of its proper divisors (23745220).

47490434 is a wasteful number, since it uses less digits than its factorization.

47490434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23745219.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 47490434 is about 6891.3303505201. The cubic root of 47490434 is about 362.1335089488.

The spelling of 47490434 in words is "forty-seven million, four hundred ninety thousand, four hundred thirty-four".