1234022402 has 4 divisors (see below), whose sum is σ = 1851033606. Its totient is φ = 617011200.

The previous prime is 1234022389. The next prime is 1234022407. The reversal of 1234022402 is 2042204321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2042204321 = 53 ⋅38532157.

It can be written as a sum of positive squares in only one way, i.e., 888099601 + 345922801 = 29801^2 + 18599^2 .

It is a super-2 number, since 2×1234022402² = 3045622577275699208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1234022407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308505599 + ... + 308505602.

Almost surely, 2^1234022402 is an apocalyptic number.

1234022402 is a deficient number, since it is larger than the sum of its proper divisors (617011204).

1234022402 is an equidigital number, since it uses as much as digits as its factorization.

1234022402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617011203.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1234022402 is about 35128.6549984482. The cubic root of 1234022402 is about 1072.6079575020.

Adding to 1234022402 its reverse (2042204321), we get a palindrome (3276226723).

The spelling of 1234022402 in words is "one billion, two hundred thirty-four million, twenty-two thousand, four hundred two".