193420045 has 32 divisors (see below), whose sum is σ = 289336320. Its totient is φ = 120856320.

The previous prime is 193420027. The next prime is 193420049. The reversal of 193420045 is 540024391.

It is not a de Polignac number, because 193420045 - 2⁷ = 193419917 is a prime.

It is a super-2 number, since 2×193420045² = 74822627615604050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 193419995 and 193420022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193420049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33255 + ... + 38635.

It is an arithmetic number, because the mean of its divisors is an integer number (9041760).

Almost surely, 2^193420045 is an apocalyptic number.

It is an amenable number.

193420045 is a deficient number, since it is larger than the sum of its proper divisors (95916275).

193420045 is a wasteful number, since it uses less digits than its factorization.

193420045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 193420045 is about 13907.5535231758. The cubic root of 193420045 is about 578.3185994709.

The spelling of 193420045 in words is "one hundred ninety-three million, four hundred twenty thousand, forty-five".