1255400434 has 16 divisors (see below), whose sum is σ = 1896050520. Its totient is φ = 623393280.

The previous prime is 1255400429. The next prime is 1255400449. The reversal of 1255400434 is 4340045521.

It can be written as a sum of positive squares in 4 ways, for example, as 331058025 + 924342409 = 18195^2 + 30403^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334432 + ... + 338164.

Almost surely, 2^1255400434 is an apocalyptic number.

1255400434 is a deficient number, since it is larger than the sum of its proper divisors (640650086).

1255400434 is a wasteful number, since it uses less digits than its factorization.

1255400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1255400434 is about 35431.6304169029. The cubic root of 1255400434 is about 1078.7664339326.

Adding to 1255400434 its reverse (4340045521), we get a palindrome (5595445955).

The spelling of 1255400434 in words is "one billion, two hundred fifty-five million, four hundred thousand, four hundred thirty-four".