20361078 has 32 divisors (see below), whose sum is σ = 45486720. Its totient is φ = 6751080.

The previous prime is 20361037. The next prime is 20361101. The reversal of 20361078 is 87016302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 10501 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (1421460).

Almost surely, 2^20361078 is an apocalyptic number.

20361078 is an abundant number, since it is smaller than the sum of its proper divisors (25125642).

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

20361078 is a wasteful number, since it uses less digits than its factorization.

20361078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20361078 is about 4512.3251212651. The cubic root of 20361078 is about 273.0655560475.

The spelling of 20361078 in words is "twenty million, three hundred sixty-one thousand, seventy-eight".