253390386 has 16 divisors (see below), whose sum is σ = 507675168. Its totient is φ = 84314400.

The previous prime is 253390381. The next prime is 253390399. The reversal of 253390386 is 683093352.

It is not an unprimeable number, because it can be changed into a prime (253390381) 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, 33555 + ... + 40406.

It is an arithmetic number, because the mean of its divisors is an integer number (31729698).

Almost surely, 2^253390386 is an apocalyptic number.

253390386 is an abundant number, since it is smaller than the sum of its proper divisors (254284782).

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

253390386 is a wasteful number, since it uses less digits than its factorization.

253390386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74537.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 253390386 is about 15918.2406691192. The cubic root of 253390386 is about 632.7954935847.

The spelling of 253390386 in words is "two hundred fifty-three million, three hundred ninety thousand, three hundred eighty-six".