263373420 has 24 divisors (see below), whose sum is σ = 737445744. Its totient is φ = 70232896.

The previous prime is 263373419. The next prime is 263373431. The reversal of 263373420 is 24373362.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194719 + ... + 2194838.

It is an arithmetic number, because the mean of its divisors is an integer number (30726906).

Almost surely, 2^263373420 is an apocalyptic number.

263373420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263373420 is an abundant number, since it is smaller than the sum of its proper divisors (474072324).

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

263373420 is a wasteful number, since it uses less digits than its factorization.

263373420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389569 (or 4389567 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 263373420 is about 16228.7836882497. The cubic root of 263373420 is about 640.9989445426.

The spelling of 263373420 in words is "two hundred sixty-three million, three hundred seventy-three thousand, four hundred twenty".