36821430 has 96 divisors (see below), whose sum is σ = 102716640. Its totient is φ = 9123840.

The previous prime is 36821429. The next prime is 36821431. The reversal of 36821430 is 3412863.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (36821429) and next prime (36821431).

It is a junction number, because it is equal to n+sod(n) for n = 36821394 and 36821403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36821431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104134 + ... + 104486.

It is an arithmetic number, because the mean of its divisors is an integer number (1069965).

Almost surely, 2^36821430 is an apocalyptic number.

36821430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36821430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51358320).

36821430 is an abundant number, since it is smaller than the sum of its proper divisors (65895210).

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

36821430 is a wasteful number, since it uses less digits than its factorization.

36821430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 36821430 is about 6068.0664136115. The cubic root of 36821430 is about 332.6852530145.

The spelling of 36821430 in words is "thirty-six million, eight hundred twenty-one thousand, four hundred thirty".