1202642419 has 4 divisors (see below), whose sum is σ = 1311973560. Its totient is φ = 1093311280.

The previous prime is 1202642401. The next prime is 1202642431. The reversal of 1202642419 is 9142462021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202642419 - 2⁷ = 1202642291 is a prime.

It is a super-2 number, since 2×1202642419² = 2892697575956343122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202642219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54665554 + ... + 54665575.

It is an arithmetic number, because the mean of its divisors is an integer number (327993390).

Almost surely, 2^1202642419 is an apocalyptic number.

1202642419 is a deficient number, since it is larger than the sum of its proper divisors (109331141).

1202642419 is a wasteful number, since it uses less digits than its factorization.

1202642419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109331140.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1202642419 is about 34679.1352112477. The cubic root of 1202642419 is about 1063.4379943583.

It can be divided in two parts, 12026 and 42419, that added together give a palindrome (54445).

The spelling of 1202642419 in words is "one billion, two hundred two million, six hundred forty-two thousand, four hundred nineteen".