253436 has 12 divisors (see below), whose sum is σ = 469728. Its totient is φ = 119232.

The previous prime is 253433. The next prime is 253439. The reversal of 253436 is 634352.

253436 = 114² + 115² + ... + 130².

It is an interprime number because it is at equal distance from previous prime (253433) and next prime (253439).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796 + ... + 1931.

It is an arithmetic number, because the mean of its divisors is an integer number (39144).

2²⁵³⁴³⁶ is an apocalyptic number.

It is an amenable number.

253436 is a deficient number, since it is larger than the sum of its proper divisors (216292).

253436 is a wasteful number, since it uses less digits than its factorization.

253436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3746 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 253436 is about 503.4242743452. The cubic root of 253436 is about 63.2833462142.

Adding to 253436 its reverse (634352), we get a palindrome (887788).

The spelling of 253436 in words is "two hundred fifty-three thousand, four hundred thirty-six".