387494261 has 16 divisors (see below), whose sum is σ = 483719040. Its totient is φ = 301562880.

The previous prime is 387494257. The next prime is 387494267. The reversal of 387494261 is 162494783.

It is a cyclic number.

It is not a de Polignac number, because 387494261 - 2² = 387494257 is a prime.

It is a super-2 number, since 2×387494261² = 300303604615872242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387494267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68825 + ... + 74241.

It is an arithmetic number, because the mean of its divisors is an integer number (30232440).

Almost surely, 2^387494261 is an apocalyptic number.

It is an amenable number.

387494261 is a deficient number, since it is larger than the sum of its proper divisors (96224779).

387494261 is a wasteful number, since it uses less digits than its factorization.

387494261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364.

The product of its digits is 290304, while the sum is 44.

The square root of 387494261 is about 19684.8739137440. The cubic root of 387494261 is about 729.0462687410.

The spelling of 387494261 in words is "three hundred eighty-seven million, four hundred ninety-four thousand, two hundred sixty-one".