445421036 has 12 divisors (see below), whose sum is σ = 813377712. Its totient is φ = 213027408.

The previous prime is 445421023. The next prime is 445421057. The reversal of 445421036 is 630124544.

It is a super-2 number, since 2×445421036² = 396799798622626592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2420675 + ... + 2420858.

It is an arithmetic number, because the mean of its divisors is an integer number (67781476).

Almost surely, 2^445421036 is an apocalyptic number.

445421036 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

445421036 is a deficient number, since it is larger than the sum of its proper divisors (367956676).

445421036 is a wasteful number, since it uses less digits than its factorization.

445421036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841560 (or 4841558 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 445421036 is about 21105.0002606018. Note that the first 3 decimals coincide. The cubic root of 445421036 is about 763.7013785933.

The spelling of 445421036 in words is "four hundred forty-five million, four hundred twenty-one thousand, thirty-six".