1940251 has 4 divisors (see below), whose sum is σ = 1943632. Its totient is φ = 1936872.

The previous prime is 1940233. The next prime is 1940269. The reversal of 1940251 is 1520491.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1940233) and next prime (1940269).

It is a cyclic number.

It is not a de Polignac number, because 1940251 - 2⁵ = 1940219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940201) 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 3 ways as a sum of consecutive naturals, for example, 591 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (485908).

2^1940251 is an apocalyptic number.

1940251 is a deficient number, since it is larger than the sum of its proper divisors (3381).

1940251 is an equidigital number, since it uses as much as digits as its factorization.

1940251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1940251 is about 1392.9289285531. The cubic root of 1940251 is about 124.7247490067.

The spelling of 1940251 in words is "one million, nine hundred forty thousand, two hundred fifty-one".