36221970 has 32 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 9641600.

The previous prime is 36221963. The next prime is 36221989. The reversal of 36221970 is 7912263.

It is a super-2 number, since 2×36221970² = 2624062221361800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30895 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^36221970 is an apocalyptic number.

36221970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

36221970 is an abundant number, since it is smaller than the sum of its proper divisors (50869230).

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

36221970 is a wasteful number, since it uses less digits than its factorization.

36221970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 36221970 is about 6018.4690744408. The cubic root of 36221970 is about 330.8699726284.

The spelling of 36221970 in words is "thirty-six million, two hundred twenty-one thousand, nine hundred seventy".