1240947 has 32 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 751680.

The previous prime is 1240931. The next prime is 1240957. The reversal of 1240947 is 7490421.

It is a happy number.

It is not a de Polignac number, because 1240947 - 2⁴ = 1240931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1240947.

It is not an unprimeable number, because it can be changed into a prime (1240957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21004 + ... + 21062.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2^1240947 is an apocalyptic number.

1240947 is a deficient number, since it is larger than the sum of its proper divisors (775053).

1240947 is a wasteful number, since it uses less digits than its factorization.

1240947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1240947 is about 1113.9780069642. The cubic root of 1240947 is about 107.4610495268.

It can be divided in two parts, 1240 and 947, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1240947 in words is "one million, two hundred forty thousand, nine hundred forty-seven".