47021642 has 8 divisors (see below), whose sum is σ = 70572576. Its totient is φ = 23497452.

The previous prime is 47021641. The next prime is 47021651. The reversal of 47021642 is 24612074.

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

It is a super-2 number, since 2×47021642² = 4422069632752328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47021641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478 + ... + 9809.

It is an arithmetic number, because the mean of its divisors is an integer number (8821572).

Almost surely, 2^47021642 is an apocalyptic number.

47021642 is a deficient number, since it is larger than the sum of its proper divisors (23550934).

47021642 is a wasteful number, since it uses less digits than its factorization.

47021642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13372.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 47021642 is about 6857.2328238146. The cubic root of 47021642 is about 360.9379911552.

The spelling of 47021642 in words is "forty-seven million, twenty-one thousand, six hundred forty-two".