1969401 has 16 divisors (see below), whose sum is σ = 3022848. Its totient is φ = 1117200.

The previous prime is 1969381. The next prime is 1969403. The reversal of 1969401 is 1049691.

It is not a de Polignac number, because 1969401 - 2⁷ = 1969273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1969403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3766 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (188928).

2^1969401 is an apocalyptic number.

1969401 is the 1146-th pentagonal number.

It is an amenable number.

1969401 is a deficient number, since it is larger than the sum of its proper divisors (1053447).

1969401 is a wasteful number, since it uses less digits than its factorization.

1969401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1969401 is about 1403.3534836241. The cubic root of 1969401 is about 125.3462612727.

The spelling of 1969401 in words is "one million, nine hundred sixty-nine thousand, four hundred one".