379487409 has 24 divisors (see below), whose sum is σ = 590751648. Its totient is φ = 216054720.

The previous prime is 379487393. The next prime is 379487411. The reversal of 379487409 is 904784973.

It is a happy number.

It is not a de Polignac number, because 379487409 - 2⁴ = 379487393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (379487609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36714 + ... + 45900.

It is an arithmetic number, because the mean of its divisors is an integer number (24614652).

Almost surely, 2^379487409 is an apocalyptic number.

It is an amenable number.

379487409 is a deficient number, since it is larger than the sum of its proper divisors (211264239).

379487409 is a wasteful number, since it uses less digits than its factorization.

379487409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485 (or 9478 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 379487409 is about 19480.4365710833. The cubic root of 379487409 is about 723.9898156184.

The spelling of 379487409 in words is "three hundred seventy-nine million, four hundred eighty-seven thousand, four hundred nine".