36446421 has 32 divisors (see below), whose sum is σ = 57139200. Its totient is φ = 20433600.

The previous prime is 36446407. The next prime is 36446437. The reversal of 36446421 is 12464463.

It is not a de Polignac number, because 36446421 - 2⁶ = 36446357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36446021) 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, 22755 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (1785600).

Almost surely, 2^36446421 is an apocalyptic number.

36446421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36446421 is a deficient number, since it is larger than the sum of its proper divisors (20692779).

36446421 is a wasteful number, since it uses less digits than its factorization.

36446421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617.

The product of its digits is 13824, while the sum is 30.

The square root of 36446421 is about 6037.0871287402. The cubic root of 36446421 is about 331.5519825482.

The spelling of 36446421 in words is "thirty-six million, four hundred forty-six thousand, four hundred twenty-one".