18980294 has 16 divisors (see below), whose sum is σ = 29329776. Its totient is φ = 9206400.

The previous prime is 18980293. The next prime is 18980309. The reversal of 18980294 is 49208981.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18980293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16754 + ... + 17850.

It is an arithmetic number, because the mean of its divisors is an integer number (1833111).

Almost surely, 2^18980294 is an apocalyptic number.

18980294 is a deficient number, since it is larger than the sum of its proper divisors (10349482).

18980294 is a wasteful number, since it uses less digits than its factorization.

18980294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 18980294 is about 4356.6379239042. The cubic root of 18980294 is about 266.7478811660.

The spelling of 18980294 in words is "eighteen million, nine hundred eighty thousand, two hundred ninety-four".