1941978 has 32 divisors (see below), whose sum is σ = 4181760. Its totient is φ = 599040.

The previous prime is 1941967. The next prime is 1941983. The reversal of 1941978 is 8791491.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7938 + ... + 8178.

It is an arithmetic number, because the mean of its divisors is an integer number (130680).

2^1941978 is an apocalyptic number.

1941978 is an abundant number, since it is smaller than the sum of its proper divisors (2239782).

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

1941978 is a wasteful number, since it uses less digits than its factorization.

1941978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its digits is 18144, while the sum is 39.

The square root of 1941978 is about 1393.5487074372. The cubic root of 1941978 is about 124.7617434926.

The spelling of 1941978 in words is "one million, nine hundred forty-one thousand, nine hundred seventy-eight".