54634440 has 128 divisors (see below), whose sum is σ = 188847360. Its totient is φ = 12386304.

The previous prime is 54634423. The next prime is 54634471. The reversal of 54634440 is 4443645.

It is a super-2 number, since 2×54634440² = 5969844068227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54634398 and 54634407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161952 + ... + 162288.

It is an arithmetic number, because the mean of its divisors is an integer number (1475370).

Almost surely, 2^54634440 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 54634440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94423680).

54634440 is an abundant number, since it is smaller than the sum of its proper divisors (134212920).

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

54634440 is a wasteful number, since it uses less digits than its factorization.

54634440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 54634440 is about 7391.5113474850. The cubic root of 54634440 is about 379.4508225909.

The spelling of 54634440 in words is "fifty-four million, six hundred thirty-four thousand, four hundred forty".