396469261 has 4 divisors (see below), whose sum is σ = 409258624. Its totient is φ = 383679900.

The previous prime is 396469259. The next prime is 396469327. The reversal of 396469261 is 162964693.

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 396469261 - 2¹ = 396469259 is a prime.

It is a super-2 number, since 2×396469261² = 314375749835772242, 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 (396469231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6394635 + ... + 6394696.

It is an arithmetic number, because the mean of its divisors is an integer number (102314656).

Almost surely, 2^396469261 is an apocalyptic number.

396469261 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

396469261 is a deficient number, since it is larger than the sum of its proper divisors (12789363).

396469261 is a wasteful number, since it uses less digits than its factorization.

396469261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12789362.

The product of its digits is 419904, while the sum is 46.

The square root of 396469261 is about 19911.5358774756. The cubic root of 396469261 is about 734.6319974305.

The spelling of 396469261 in words is "three hundred ninety-six million, four hundred sixty-nine thousand, two hundred sixty-one".