1276140 has 24 divisors (see below), whose sum is σ = 3573360. Its totient is φ = 340288.

The previous prime is 1276133. The next prime is 1276147. The reversal of 1276140 is 416721.

1276140 = 96² + 97² + ... + 167².

It is an interprime number because it is at equal distance from previous prime (1276133) and next prime (1276147).

It is not an unprimeable number, because it can be changed into a prime (1276147) 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, 10575 + ... + 10694.

It is an arithmetic number, because the mean of its divisors is an integer number (148890).

2^1276140 is an apocalyptic number.

1276140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276140 is an abundant number, since it is smaller than the sum of its proper divisors (2297220).

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

1276140 is a wasteful number, since it uses less digits than its factorization.

1276140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281 (or 21279 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1276140 is about 1129.6636667610. The cubic root of 1276140 is about 108.4674525606.

The spelling of 1276140 in words is "one million, two hundred seventy-six thousand, one hundred forty".