403806869764 has 9 divisors (see below), whose sum is σ = 706664246197. Its totient is φ = 201902799424.

The previous prime is 403806869749. The next prime is 403806869801. The reversal of 403806869764 is 467968608304.

The square root of 403806869764 is 635458.

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., 226060309764 + 177746560000 = 475458^2 + 421600^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1112052 + ... + 1429780.

Almost surely, 2^403806869764 is an apocalyptic number.

403806869764 is the 635458-th square number.

It is an amenable number.

403806869764 is a deficient number, since it is larger than the sum of its proper divisors (302857376433).

403806869764 is an frugal number, since it uses more digits than its factorization.

403806869764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635462 (or 317731 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 403806869764 in words is "four hundred three billion, eight hundred six million, eight hundred sixty-nine thousand, seven hundred sixty-four".