387740949 has 8 divisors (see below), whose sum is σ = 525463392. Its totient is φ = 254256240.

The previous prime is 387740939. The next prime is 387740959. The reversal of 387740949 is 949047783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (387740939) and next prime (387740959).

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

It is not a de Polignac number, because 387740949 - 2²⁰ = 386692373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387740909) 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, 1059219 + ... + 1059584.

It is an arithmetic number, because the mean of its divisors is an integer number (65682924).

Almost surely, 2^387740949 is an apocalyptic number.

It is an amenable number.

387740949 is a deficient number, since it is larger than the sum of its proper divisors (137722443).

387740949 is a wasteful number, since it uses less digits than its factorization.

387740949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118867.

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

The square root of 387740949 is about 19691.1388446682. The cubic root of 387740949 is about 729.2009452808.

The spelling of 387740949 in words is "three hundred eighty-seven million, seven hundred forty thousand, nine hundred forty-nine".