20580378 has 32 divisors (see below), whose sum is σ = 50660736. Its totient is φ = 5427648.

The previous prime is 20580367. The next prime is 20580403. The reversal of 20580378 is 87308502.

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, 18301 + ... + 19392.

It is an arithmetic number, because the mean of its divisors is an integer number (1583148).

Almost surely, 2^20580378 is an apocalyptic number.

20580378 is an abundant number, since it is smaller than the sum of its proper divisors (30080358).

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

20580378 is a wasteful number, since it uses less digits than its factorization.

20580378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37718.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 20580378 is about 4536.5601505987. The cubic root of 20580378 is about 274.0424126720.

The spelling of 20580378 in words is "twenty million, five hundred eighty thousand, three hundred seventy-eight".