1969142 has 16 divisors (see below), whose sum is σ = 3455232. Its totient is φ = 824040.

The previous prime is 1969111. The next prime is 1969147. The reversal of 1969142 is 2419691.

It is a junction number, because it is equal to n+sod(n) for n = 1969099 and 1969108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969147) 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, 1034 + ... + 2237.

It is an arithmetic number, because the mean of its divisors is an integer number (215952).

2^1969142 is an apocalyptic number.

1969142 is a deficient number, since it is larger than the sum of its proper divisors (1486090).

1969142 is a wasteful number, since it uses less digits than its factorization.

1969142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323.

The product of its digits is 3888, while the sum is 32.

The square root of 1969142 is about 1403.2612016300. The cubic root of 1969142 is about 125.3407661831.

It can be divided in two parts, 196914 and 2, that multiplied together give a triangular number (393828 = T₈₈₇).

The spelling of 1969142 in words is "one million, nine hundred sixty-nine thousand, one hundred forty-two".