263473690 has 32 divisors (see below), whose sum is σ = 482112000. Its totient is φ = 103653888.

The previous prime is 263473673. The next prime is 263473723. The reversal of 263473690 is 96374362.

263473690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×263473690² = 138836770644432200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283146 + ... + 284074.

It is an arithmetic number, because the mean of its divisors is an integer number (15066000).

Almost surely, 2^263473690 is an apocalyptic number.

263473690 is a deficient number, since it is larger than the sum of its proper divisors (218638310).

263473690 is a wasteful number, since it uses less digits than its factorization.

263473690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 263473690 is about 16231.8726584458. The cubic root of 263473690 is about 641.0802800210.

The spelling of 263473690 in words is "two hundred sixty-three million, four hundred seventy-three thousand, six hundred ninety".