1234397956 has 27 divisors (see below), whose sum is σ = 2375918517. Its totient is φ = 560738640.

The previous prime is 1234397939. The next prime is 1234397981. The reversal of 1234397956 is 6597934321.

The square root of 1234397956 is 35134.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 247432900 + 986965056 = 15730^2 + 31416^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 772150 + ... + 773746.

Almost surely, 2^1234397956 is an apocalyptic number.

1234397956 is the 35134-th square number.

It is an amenable number.

1234397956 is a deficient number, since it is larger than the sum of its proper divisors (1141520561).

1234397956 is an equidigital number, since it uses as much as digits as its factorization.

1234397956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220 (or 1610 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 49.

The cubic root of 1234397956 is about 1072.7167565403.

Multiplying 1234397956 by its sum of digits (49), we get a square (60485499844 = 245938²).

The spelling of 1234397956 in words is "one billion, two hundred thirty-four million, three hundred ninety-seven thousand, nine hundred fifty-six".