54232240 has 40 divisors (see below), whose sum is σ = 127023120. Its totient is φ = 21532416.

The previous prime is 54232231. The next prime is 54232259. The reversal of 54232240 is 4223245.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×54232240² = 5882271710835200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8682 + ... + 13558.

It is an arithmetic number, because the mean of its divisors is an integer number (3175578).

Almost surely, 2^54232240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63511560).

54232240 is an abundant number, since it is smaller than the sum of its proper divisors (72790880).

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

54232240 is a wasteful number, since it uses less digits than its factorization.

54232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 54232240 is about 7364.2542052811. The cubic root of 54232240 is about 378.5173993992.

Adding to 54232240 its reverse (4223245), we get a palindrome (58455485).

The spelling of 54232240 in words is "fifty-four million, two hundred thirty-two thousand, two hundred forty".