19772030 has 8 divisors (see below), whose sum is σ = 35589672. Its totient is φ = 7908808.

The previous prime is 19772029. The next prime is 19772033. The reversal of 19772030 is 3027791.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 19771984 and 19772002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19772033) 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, 988592 + ... + 988611.

It is an arithmetic number, because the mean of its divisors is an integer number (4448709).

Almost surely, 2^19772030 is an apocalyptic number.

19772030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19772030 is a deficient number, since it is larger than the sum of its proper divisors (15817642).

19772030 is a wasteful number, since it uses less digits than its factorization.

19772030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977210.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 19772030 is about 4446.5750865132. The cubic root of 19772030 is about 270.4064750938.

It can be divided in two parts, 197 and 72030, that added together give a palindrome (72227).

The spelling of 19772030 in words is "nineteen million, seven hundred seventy-two thousand, thirty".