1422640019 has 8 divisors (see below), whose sum is σ = 1509214320. Its totient is φ = 1336386816.

The previous prime is 1422640013. The next prime is 1422640057. The reversal of 1422640019 is 9100462241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1422640019 - 2²⁰ = 1421591443 is a prime.

It is a super-2 number, since 2×1422640019² = 4047809247320640722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422639973 and 1422640000.

It is not an unprimeable number, because it can be changed into a prime (1422640013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71114 + ... + 88895.

It is an arithmetic number, because the mean of its divisors is an integer number (188651790).

Almost surely, 2^1422640019 is an apocalyptic number.

1422640019 is a deficient number, since it is larger than the sum of its proper divisors (86574301).

1422640019 is a wasteful number, since it uses less digits than its factorization.

1422640019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160549.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1422640019 is about 37717.9005115608. The cubic root of 1422640019 is about 1124.6869961158.

It can be divided in two parts, 14226 and 40019, that added together give a palindrome (54245).

The spelling of 1422640019 in words is "one billion, four hundred twenty-two million, six hundred forty thousand, nineteen".