20850412 has 24 divisors (see below), whose sum is σ = 40560912. Its totient is φ = 9297600.

The previous prime is 20850409. The next prime is 20850437. The reversal of 20850412 is 21405802.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1690038).

Almost surely, 2^20850412 is an apocalyptic number.

20850412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20850412 is a deficient number, since it is larger than the sum of its proper divisors (19710500).

20850412 is a wasteful number, since it uses less digits than its factorization.

20850412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20850412 is about 4566.2251368061. The cubic root of 20850412 is about 275.2357735574.

The spelling of 20850412 in words is "twenty million, eight hundred fifty thousand, four hundred twelve".