403849669 has 4 divisors (see below), whose sum is σ = 409877344. Its totient is φ = 397821996.

The previous prime is 403849661. The next prime is 403849673. The reversal of 403849669 is 966948304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403849669 - 2³ = 403849661 is a prime.

It is a super-2 number, since 2×403849669² = 326189110302819122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403849661) 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, 3013737 + ... + 3013870.

It is an arithmetic number, because the mean of its divisors is an integer number (102469336).

Almost surely, 2^403849669 is an apocalyptic number.

It is an amenable number.

403849669 is a deficient number, since it is larger than the sum of its proper divisors (6027675).

403849669 is an equidigital number, since it uses as much as digits as its factorization.

403849669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027674.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 403849669 is about 20096.0112708965. The cubic root of 403849669 is about 739.1624740499.

The spelling of 403849669 in words is "four hundred three million, eight hundred forty-nine thousand, six hundred sixty-nine".