43498420 has 48 divisors (see below), whose sum is σ = 105114240. Its totient is φ = 14811264.

The previous prime is 43498397. The next prime is 43498439. The reversal of 43498420 is 2489434.

It is a super-2 number, since 2×43498420² = 3784225084992800, which contains 22 as substring.

It is a congruent number.

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, 20991 + ... + 22969.

It is an arithmetic number, because the mean of its divisors is an integer number (2189880).

Almost surely, 2^43498420 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 43498420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52557120).

43498420 is an abundant number, since it is smaller than the sum of its proper divisors (61615820).

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

43498420 is a wasteful number, since it uses less digits than its factorization.

43498420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 43498420 is about 6595.3331985579. Note that the first 3 decimals coincide. The cubic root of 43498420 is about 351.6882247091.

It can be divided in two parts, 4349 and 8420, that added together give a square (12769 = 113²).

The spelling of 43498420 in words is "forty-three million, four hundred ninety-eight thousand, four hundred twenty".