1265430 has 16 divisors (see below), whose sum is σ = 3037104. Its totient is φ = 337440.

The previous prime is 1265393. The next prime is 1265431. The reversal of 1265430 is 345621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1265397 and 1265406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21061 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (189819).

2^1265430 is an apocalyptic number.

1265430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265430 is an abundant number, since it is smaller than the sum of its proper divisors (1771674).

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

1265430 is a wasteful number, since it uses less digits than its factorization.

1265430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42191.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1265430 is about 1124.9133299948. The cubic root of 1265430 is about 108.1631621560.

The spelling of 1265430 in words is "one million, two hundred sixty-five thousand, four hundred thirty".