46881409 has 9 divisors (see below), whose sum is σ = 48342211. Its totient is φ = 45464080.

The previous prime is 46881397. The next prime is 46881413. The reversal of 46881409 is 90418864.

The square root of 46881409 is 6847.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 44622400 = 1503^2 + 6680^2 .

It is not a de Polignac number, because 46881409 - 2¹¹ = 46879361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46881209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 280644 + ... + 280810.

Almost surely, 2^46881409 is an apocalyptic number.

46881409 is the 6847-th square number.

46881409 is the 3424-th centered octagonal number.

It is an amenable number.

46881409 is a deficient number, since it is larger than the sum of its proper divisors (1460802).

46881409 is an frugal number, since it uses more digits than its factorization.

46881409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The cubic root of 46881409 is about 360.5788244991.

The spelling of 46881409 in words is "forty-six million, eight hundred eighty-one thousand, four hundred nine".