1276464 has 80 divisors (see below), whose sum is σ = 3928320. Its totient is φ = 349440.

The previous prime is 1276447. The next prime is 1276481. The reversal of 1276464 is 4646721.

It is an interprime number because it is at equal distance from previous prime (1276447) and next prime (1276481).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 9679 + ... + 9809.

It is an arithmetic number, because the mean of its divisors is an integer number (49104).

2^1276464 is an apocalyptic number.

1276464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964160).

1276464 is an abundant number, since it is smaller than the sum of its proper divisors (2651856).

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

1276464 is a wasteful number, since it uses less digits than its factorization.

1276464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 172 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 1276464 is about 1129.8070631749. The cubic root of 1276464 is about 108.4766314075.

The spelling of 1276464 in words is "one million, two hundred seventy-six thousand, four hundred sixty-four".