1263402 has 48 divisors (see below), whose sum is σ = 3224832. Its totient is φ = 349920.

The previous prime is 1263391. The next prime is 1263403. The reversal of 1263402 is 2043621.

It is a happy number.

1263402 is a `hidden beast` number, since 1 + 263 + 402 = 666.

It is a super-2 number, since 2×1263402² = 3192369227208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4527 + ... + 4797.

It is an arithmetic number, because the mean of its divisors is an integer number (67184).

2^1263402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612416).

1263402 is an abundant number, since it is smaller than the sum of its proper divisors (1961430).

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

1263402 is a wasteful number, since it uses less digits than its factorization.

1263402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1263402 is about 1124.0115657768. The cubic root of 1263402 is about 108.1053498767.

The spelling of 1263402 in words is "one million, two hundred sixty-three thousand, four hundred two".