18772050 has 96 divisors (see below), whose sum is σ = 52568064. Its totient is φ = 4392000.

The previous prime is 18772049. The next prime is 18772069. The reversal of 18772050 is 5027781.

It is a happy number.

It is a super-2 number, since 2×18772050² = 704779722405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 18771999 and 18772017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50967 + ... + 51333.

It is an arithmetic number, because the mean of its divisors is an integer number (547584).

Almost surely, 2^18772050 is an apocalyptic number.

18772050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18772050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26284032).

18772050 is an abundant number, since it is smaller than the sum of its proper divisors (33796014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18772050 is a wasteful number, since it uses less digits than its factorization.

18772050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 18772050 is about 4332.6723854914. The cubic root of 18772050 is about 265.7687420390.

The spelling of 18772050 in words is "eighteen million, seven hundred seventy-two thousand, fifty".