46409389 has 4 divisors (see below), whose sum is σ = 49979356. Its totient is φ = 42839424.

The previous prime is 46409383. The next prime is 46409393. The reversal of 46409389 is 98390464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18636489 + 27772900 = 4317^2 + 5270^2 .

It is a cyclic number.

It is not a de Polignac number, because 46409389 - 2⁹ = 46408877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46409383) 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, 1784964 + ... + 1784989.

It is an arithmetic number, because the mean of its divisors is an integer number (12494839).

Almost surely, 2^46409389 is an apocalyptic number.

It is an amenable number.

46409389 is a deficient number, since it is larger than the sum of its proper divisors (3569967).

46409389 is a wasteful number, since it uses less digits than its factorization.

46409389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569966.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 46409389 is about 6812.4436878407. The cubic root of 46409389 is about 359.3645915977.

The spelling of 46409389 in words is "forty-six million, four hundred nine thousand, three hundred eighty-nine".