263261434 has 16 divisors (see below), whose sum is σ = 397776096. Its totient is φ = 130673200.

The previous prime is 263261431. The next prime is 263261447. The reversal of 263261434 is 434162362.

It is a junction number, because it is equal to n+sod(n) for n = 263261396 and 263261405.

It is not an unprimeable number, because it can be changed into a prime (263261431) 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, 222324 + ... + 223504.

It is an arithmetic number, because the mean of its divisors is an integer number (24861006).

Almost surely, 2^263261434 is an apocalyptic number.

263261434 is a deficient number, since it is larger than the sum of its proper divisors (134514662).

263261434 is a wasteful number, since it uses less digits than its factorization.

263261434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901.

The product of its digits is 20736, while the sum is 31.

The square root of 263261434 is about 16225.3330936533. Note that the first 3 decimals coincide. The cubic root of 263261434 is about 640.9080810528.

The spelling of 263261434 in words is "two hundred sixty-three million, two hundred sixty-one thousand, four hundred thirty-four".