20046442 has 24 divisors (see below), whose sum is σ = 32887296. Its totient is φ = 9159696.

The previous prime is 20046427. The next prime is 20046461. The reversal of 20046442 is 24464002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42693 + ... + 43159.

It is an arithmetic number, because the mean of its divisors is an integer number (1370304).

Almost surely, 2^20046442 is an apocalyptic number.

20046442 is a deficient number, since it is larger than the sum of its proper divisors (12840854).

20046442 is a wasteful number, since it uses less digits than its factorization.

20046442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20046442 is about 4477.3253176422. The cubic root of 20046442 is about 271.6517042123.

The spelling of 20046442 in words is "twenty million, forty-six thousand, four hundred forty-two".