1277442 has 12 divisors (see below), whose sum is σ = 2767830. Its totient is φ = 425808.

The previous prime is 1277429. The next prime is 1277449. The reversal of 1277442 is 2447721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1252161 + 25281 = 1119^2 + 159^2 .

It is not an unprimeable number, because it can be changed into a prime (1277449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35467 + ... + 35502.

2^1277442 is an apocalyptic number.

1277442 is an abundant number, since it is smaller than the sum of its proper divisors (1490388).

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

1277442 is a wasteful number, since it uses less digits than its factorization.

1277442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70977 (or 70974 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1277442 is about 1130.2397975651. The cubic root of 1277442 is about 108.5043285099.

It can be divided in two parts, 127 and 7442, that added together give a square (7569 = 87²).

The spelling of 1277442 in words is "one million, two hundred seventy-seven thousand, four hundred forty-two".