249076386 has 48 divisors (see below), whose sum is σ = 589889664. Its totient is φ = 75490272.

The previous prime is 249076381. The next prime is 249076393. The reversal of 249076386 is 683670942.

249076386 = 1895² + 1896² + ... + 1961².

249076386 is a `hidden beast` number, since 2 + 4 + 9 + 0 + 7 + 638 + 6 = 666.

249076386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (249076381) 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, 7735 + ... + 23621.

It is an arithmetic number, because the mean of its divisors is an integer number (12289368).

Almost surely, 2^249076386 is an apocalyptic number.

249076386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 249076386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294944832).

249076386 is an abundant number, since it is smaller than the sum of its proper divisors (340813278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249076386 is a wasteful number, since it uses less digits than its factorization.

249076386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15975 (or 15972 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 249076386 is about 15782.1540354921. The cubic root of 249076386 is about 629.1837804642.

The spelling of 249076386 in words is "two hundred forty-nine million, seventy-six thousand, three hundred eighty-six".