1940807 has 8 divisors (see below), whose sum is σ = 2157840. Its totient is φ = 1730560.

The previous prime is 1940797. The next prime is 1940821. The reversal of 1940807 is 7080491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1940807 - 2⁸ = 1940551 is a prime.

It is a super-2 number, since 2×1940807² = 7533463622498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082 + ... + 2247.

It is an arithmetic number, because the mean of its divisors is an integer number (269730).

2^1940807 is an apocalyptic number.

1940807 is a deficient number, since it is larger than the sum of its proper divisors (217033).

1940807 is a wasteful number, since it uses less digits than its factorization.

1940807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1940807 is about 1393.1284937148. The cubic root of 1940807 is about 124.7366616127.

The spelling of 1940807 in words is "one million, nine hundred forty thousand, eight hundred seven".