253077438 has 32 divisors (see below), whose sum is σ = 516865536. Its totient is φ = 82581408.

The previous prime is 253077437. The next prime is 253077443. The reversal of 253077438 is 834770352.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253077396 and 253077405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253077431) 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, 261231 + ... + 262197.

It is an arithmetic number, because the mean of its divisors is an integer number (16152048).

Almost surely, 2^253077438 is an apocalyptic number.

253077438 is an abundant number, since it is smaller than the sum of its proper divisors (263788098).

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

253077438 is a wasteful number, since it uses less digits than its factorization.

253077438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 253077438 is about 15908.4077770216. The cubic root of 253077438 is about 632.5348764013.

The spelling of 253077438 in words is "two hundred fifty-three million, seventy-seven thousand, four hundred thirty-eight".