438434477 has 8 divisors (see below), whose sum is σ = 473292960. Its totient is φ = 403737840.

The previous prime is 438434461. The next prime is 438434527. The reversal of 438434477 is 774434834.

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 438434477 - 2⁴ = 438434461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438434977) 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, 34799 + ... + 45692.

It is an arithmetic number, because the mean of its divisors is an integer number (59161620).

Almost surely, 2^438434477 is an apocalyptic number.

It is an amenable number.

438434477 is a deficient number, since it is larger than the sum of its proper divisors (34858483).

438434477 is a wasteful number, since it uses less digits than its factorization.

438434477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80923.

The product of its digits is 903168, while the sum is 44.

The square root of 438434477 is about 20938.8270206332. The cubic root of 438434477 is about 759.6873581326.

The spelling of 438434477 in words is "four hundred thirty-eight million, four hundred thirty-four thousand, four hundred seventy-seven".