40604333855409 has 15 divisors (see below), whose sum is σ = 60655942417147. Its totient is φ = 27069517670688.

The previous prime is 40604333855401. The next prime is 40604333855411. The reversal of 40604333855409 is 90455833340604.

The square root of 40604333855409 is 6372153.

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

40604333855409 is a `hidden beast` number, since 4 + 0 + 60 + 4 + 3 + 3 + 38 + 5 + 540 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39670157480625 + 934176374784 = 6298425^2 + 966528^2 .

It is not a de Polignac number, because 40604333855409 - 2³ = 40604333855401 is a prime.

It is a super-2 number, since 2×40604333855409² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40604333855401) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 56995369 + ... + 57703385.

Almost surely, 2^{40604333855409} is an apocalyptic number.

40604333855409 is the 6372153-rd square number.

40604333855409 is the 3186077-th centered octagonal number.

It is an amenable number.

40604333855409 is a deficient number, since it is larger than the sum of its proper divisors (20051608561738).

40604333855409 is an frugal number, since it uses more digits than its factorization.

40604333855409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416046 (or 708020 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 40604333855409 in words is "forty trillion, six hundred four billion, three hundred thirty-three million, eight hundred fifty-five thousand, four hundred nine".