72422419 has 2 divisors, whose sum is σ = 72422420. Its totient is φ = 72422418.

The previous prime is 72422407. The next prime is 72422461. The reversal of 72422419 is 91422427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72422419 - 2⁷ = 72422291 is a prime.

It is a super-2 number, since 2×72422419² = 10490013547623122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72422719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36211209 + 36211210.

It is an arithmetic number, because the mean of its divisors is an integer number (36211210).

Almost surely, 2^72422419 is an apocalyptic number.

72422419 is a deficient number, since it is larger than the sum of its proper divisors (1).

72422419 is an equidigital number, since it uses as much as digits as its factorization.

72422419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 72422419 is about 8510.1362503781. The cubic root of 72422419 is about 416.8287591920.

The spelling of 72422419 in words is "seventy-two million, four hundred twenty-two thousand, four hundred nineteen".