1240620034 has 4 divisors (see below), whose sum is σ = 1860930054. Its totient is φ = 620310016.

The previous prime is 1240619993. The next prime is 1240620049. The reversal of 1240620034 is 4300260421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4300260421 = 73 ⋅58907677.

It can be written as a sum of positive squares in only one way, i.e., 1040256009 + 200364025 = 32253^2 + 14155^2 .

It is a super-2 number, since 2×1240620034² = 3078276137524322312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1240619987 and 1240620014.

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 as a sum of consecutive naturals, namely, 310155007 + ... + 310155010.

Almost surely, 2^1240620034 is an apocalyptic number.

1240620034 is a deficient number, since it is larger than the sum of its proper divisors (620310020).

1240620034 is an equidigital number, since it uses as much as digits as its factorization.

1240620034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620310019.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240620034 is about 35222.4365142447. The cubic root of 1240620034 is about 1074.5161071490.

Adding to 1240620034 its reverse (4300260421), we get a palindrome (5540880455).

The spelling of 1240620034 in words is "one billion, two hundred forty million, six hundred twenty thousand, thirty-four".