54440290 has 16 divisors (see below), whose sum is σ = 103757112. Its totient is φ = 20495104.

The previous prime is 54440237. The next prime is 54440291. The reversal of 54440290 is 9204445.

It can be written as a sum of positive squares in 4 ways, for example, as 51825601 + 2614689 = 7199^2 + 1617^2 .

It is not an unprimeable number, because it can be changed into a prime (54440291) 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, 159949 + ... + 160288.

Almost surely, 2^54440290 is an apocalyptic number.

54440290 is a deficient number, since it is larger than the sum of its proper divisors (49316822).

54440290 is a wasteful number, since it uses less digits than its factorization.

54440290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320261.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 54440290 is about 7378.3663503515. The cubic root of 54440290 is about 379.0008145289. Note that the first 3 decimals are identical.

The spelling of 54440290 in words is "fifty-four million, four hundred forty thousand, two hundred ninety".