54440490 has 32 divisors (see below), whose sum is σ = 140708736. Its totient is φ = 13400640.

The previous prime is 54440479. The next prime is 54440501. The reversal of 54440490 is 9404445.

It is an interprime number because it is at equal distance from previous prime (54440479) and next prime (54440501).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69406 + ... + 70185.

It is an arithmetic number, because the mean of its divisors is an integer number (4397148).

Almost surely, 2^54440490 is an apocalyptic number.

54440490 is an abundant number, since it is smaller than the sum of its proper divisors (86268246).

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

54440490 is a wasteful number, since it uses less digits than its factorization.

54440490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139614.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 54440490 is about 7378.3799034747. The cubic root of 54440490 is about 379.0012786464.

The spelling of 54440490 in words is "fifty-four million, four hundred forty thousand, four hundred ninety".