1263790 has 16 divisors (see below), whose sum is σ = 2481840. Its totient is φ = 459520.

The previous prime is 1263767. The next prime is 1263793. The reversal of 1263790 is 973621.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263793) 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, 5635 + ... + 5854.

It is an arithmetic number, because the mean of its divisors is an integer number (155115).

2^1263790 is an apocalyptic number.

1263790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263790 is a deficient number, since it is larger than the sum of its proper divisors (1218050).

1263790 is a wasteful number, since it uses less digits than its factorization.

1263790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1263790 is about 1124.1841486162. The cubic root of 1263790 is about 108.1164153920.

It can be divided in two parts, 126 and 3790, that added together give a triangular number (3916 = T₈₈).

The spelling of 1263790 in words is "one million, two hundred sixty-three thousand, seven hundred ninety".