47644402 has 8 divisors (see below), whose sum is σ = 76964076. Its totient is φ = 21989712.

The previous prime is 47644397. The next prime is 47644439. The reversal of 47644402 is 20444674.

It can be written as a sum of positive squares in 2 ways, for example, as 47320641 + 323761 = 6879^2 + 569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916213 + ... + 916264.

Almost surely, 2^47644402 is an apocalyptic number.

47644402 is a deficient number, since it is larger than the sum of its proper divisors (29319674).

47644402 is a wasteful number, since it uses less digits than its factorization.

47644402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832492.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 47644402 is about 6902.4924483841. The cubic root of 47644402 is about 362.5244425849.

The spelling of 47644402 in words is "forty-seven million, six hundred forty-four thousand, four hundred two".