263461020 has 24 divisors (see below), whose sum is σ = 737691024. Its totient is φ = 70256256.

The previous prime is 263460983. The next prime is 263461057. The reversal of 263461020 is 20164362.

263461020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (263460983) and next prime (263461057).

It is a congruent number.

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, 2195449 + ... + 2195568.

It is an arithmetic number, because the mean of its divisors is an integer number (30737126).

Almost surely, 2^263461020 is an apocalyptic number.

263461020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263461020 is an abundant number, since it is smaller than the sum of its proper divisors (474230004).

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

263461020 is a wasteful number, since it uses less digits than its factorization.

263461020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391029 (or 4391027 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 263461020 is about 16231.4823722296. The cubic root of 263461020 is about 641.0700037042.

The spelling of 263461020 in words is "two hundred sixty-three million, four hundred sixty-one thousand, twenty".