406925369 has 8 divisors (see below), whose sum is σ = 417362568. Its totient is φ = 396512640.

The previous prime is 406925359. The next prime is 406925381. The reversal of 406925369 is 963529604.

It can be written as a sum of positive squares in 4 ways, for example, as 132526144 + 274399225 = 11512^2 + 16565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 406925369 - 2¹⁶ = 406859833 is a prime.

It is a super-2 number, since 2×406925369² = 331176511871572322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406925329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30299 + ... + 41615.

It is an arithmetic number, because the mean of its divisors is an integer number (52170321).

Almost surely, 2^406925369 is an apocalyptic number.

It is an amenable number.

406925369 is a deficient number, since it is larger than the sum of its proper divisors (10437199).

406925369 is a wasteful number, since it uses less digits than its factorization.

406925369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 406925369 is about 20172.3912563682. The cubic root of 406925369 is about 741.0342058816.

The spelling of 406925369 in words is "four hundred six million, nine hundred twenty-five thousand, three hundred sixty-nine".