472013981 has 8 divisors (see below), whose sum is σ = 493370304. Its totient is φ = 450727200.

The previous prime is 472013957. The next prime is 472013989. The reversal of 472013981 is 189310274.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472013981 is a prime.

It is a super-2 number, since 2×472013981² = 445594396518936722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472013989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251 + ... + 30896.

It is an arithmetic number, because the mean of its divisors is an integer number (61671288).

Almost surely, 2^472013981 is an apocalyptic number.

It is an amenable number.

472013981 is a deficient number, since it is larger than the sum of its proper divisors (21356323).

472013981 is a wasteful number, since it uses less digits than its factorization.

472013981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34771.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 472013981 is about 21725.8827438611. The cubic root of 472013981 is about 778.6069706670.

The spelling of 472013981 in words is "four hundred seventy-two million, thirteen thousand, nine hundred eighty-one".