464829981 has 32 divisors (see below), whose sum is σ = 787304448. Its totient is φ = 236907840.

The previous prime is 464829961. The next prime is 464829991. The reversal of 464829981 is 189928464.

It is not a de Polignac number, because 464829981 - 2¹⁵ = 464797213 is a prime.

It is a super-2 number, since 2×464829981² = 432133822472920722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464829961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6741 + ... + 31226.

It is an arithmetic number, because the mean of its divisors is an integer number (24603264).

Almost surely, 2^464829981 is an apocalyptic number.

It is an amenable number.

464829981 is a deficient number, since it is larger than the sum of its proper divisors (322474467).

464829981 is a wasteful number, since it uses less digits than its factorization.

464829981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38041.

The product of its digits is 995328, while the sum is 51.

The square root of 464829981 is about 21559.9160712652. The cubic root of 464829981 is about 774.6366557634.

The spelling of 464829981 in words is "four hundred sixty-four million, eight hundred twenty-nine thousand, nine hundred eighty-one".