407249869 has 8 divisors (see below), whose sum is σ = 441483392. Its totient is φ = 373431600.

The previous prime is 407249867. The next prime is 407249873. The reversal of 407249869 is 968942704.

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

It is a cyclic number.

It is not a de Polignac number, because 407249869 - 2¹ = 407249867 is a prime.

It is a super-2 number, since 2×407249869² = 331704911601034322, 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 (407249863) 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 7 ways as a sum of consecutive naturals, for example, 101769 + ... + 105694.

It is an arithmetic number, because the mean of its divisors is an integer number (55185424).

Almost surely, 2^407249869 is an apocalyptic number.

It is an amenable number.

407249869 is a deficient number, since it is larger than the sum of its proper divisors (34233523).

407249869 is a wasteful number, since it uses less digits than its factorization.

407249869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207627.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 407249869 is about 20180.4328248925. The cubic root of 407249869 is about 741.2311311879.

The spelling of 407249869 in words is "four hundred seven million, two hundred forty-nine thousand, eight hundred sixty-nine".