1956436 has 6 divisors (see below), whose sum is σ = 3423770. Its totient is φ = 978216.

The previous prime is 1956433. The next prime is 1956439. The reversal of 1956436 is 6346591.

It is an interprime number because it is at equal distance from previous prime (1956433) and next prime (1956439).

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 24336 = 1390^2 + 156^2 .

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244551 + ... + 244558.

2^1956436 is an apocalyptic number.

It is an amenable number.

1956436 is a deficient number, since it is larger than the sum of its proper divisors (1467334).

1956436 is a wasteful number, since it uses less digits than its factorization.

1956436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489113 (or 489111 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 1956436 is about 1398.7265637000. The cubic root of 1956436 is about 125.0705947902.

It can be divided in two parts, 19564 and 36, that added together give a square (19600 = 140²).

The spelling of 1956436 in words is "one million, nine hundred fifty-six thousand, four hundred thirty-six".