20378150 has 48 divisors (see below), whose sum is σ = 41341104. Its totient is φ = 7428480.

The previous prime is 20378147. The next prime is 20378153. The reversal of 20378150 is 5187302.

It is an interprime number because it is at equal distance from previous prime (20378147) and next prime (20378153).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20378153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69404 + ... + 69696.

It is an arithmetic number, because the mean of its divisors is an integer number (861273).

Almost surely, 2^20378150 is an apocalyptic number.

20378150 is an abundant number, since it is smaller than the sum of its proper divisors (20962954).

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

20378150 is a wasteful number, since it uses less digits than its factorization.

20378150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 20378150 is about 4514.2164325606. The cubic root of 20378150 is about 273.1418531353.

The spelling of 20378150 in words is "twenty million, three hundred seventy-eight thousand, one hundred fifty".