409769552 has 10 divisors (see below), whose sum is σ = 793928538. Its totient is φ = 204884768.

The previous prime is 409769551. The next prime is 409769579. The reversal of 409769552 is 255967904.

It can be written as a sum of positive squares in only one way, i.e., 406586896 + 3182656 = 20164^2 + 1784^2 .

It is a super-2 number, since 2×409769552² = 335822171492561408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 409769497 and 409769506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409769551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12805283 + ... + 12805314.

Almost surely, 2^409769552 is an apocalyptic number.

It is an amenable number.

409769552 is a deficient number, since it is larger than the sum of its proper divisors (384158986).

409769552 is a wasteful number, since it uses less digits than its factorization.

409769552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25610605 (or 25610599 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 409769552 is about 20242.7654237261. The cubic root of 409769552 is about 742.7566719854.

The spelling of 409769552 in words is "four hundred nine million, seven hundred sixty-nine thousand, five hundred fifty-two".