1940427 has 12 divisors (see below), whose sum is σ = 2823600. Its totient is φ = 1284048.

The previous prime is 1940423. The next prime is 1940437. The reversal of 1940427 is 7240491.

It is a happy number.

It is not a de Polignac number, because 1940427 - 2² = 1940423 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940427.

It is not an unprimeable number, because it can be changed into a prime (1940423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (235300).

2^1940427 is an apocalyptic number.

1940427 is a deficient number, since it is larger than the sum of its proper divisors (883173).

1940427 is a wasteful number, since it uses less digits than its factorization.

1940427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1599 counting only the distinct ones).

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

The square root of 1940427 is about 1392.9921033516. The cubic root of 1940427 is about 124.7285201497.

The spelling of 1940427 in words is "one million, nine hundred forty thousand, four hundred twenty-seven".