18406954 has 8 divisors (see below), whose sum is σ = 29234628. Its totient is φ = 8662080.

The previous prime is 18406951. The next prime is 18406979. The reversal of 18406954 is 45960481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14265729 + 4141225 = 3777^2 + 2035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18406951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270657 + ... + 270724.

Almost surely, 2^18406954 is an apocalyptic number.

18406954 is a deficient number, since it is larger than the sum of its proper divisors (10827674).

18406954 is a wasteful number, since it uses less digits than its factorization.

18406954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541400.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 18406954 is about 4290.3326211379. The cubic root of 18406954 is about 264.0344785853.

The spelling of 18406954 in words is "eighteen million, four hundred six thousand, nine hundred fifty-four".