354540 has 48 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 89280.

The previous prime is 354539. The next prime is 354551. The reversal of 354540 is 45453.

It is a happy number.

It is a super-2 number, since 2×354540² = 251397223200, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 354540.

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, 985 + ... + 1295.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2³⁵⁴⁵⁴⁰ is an apocalyptic number.

354540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524160).

354540 is an abundant number, since it is smaller than the sum of its proper divisors (693780).

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

354540 is a wasteful number, since it uses less digits than its factorization.

354540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 354540 is about 595.4326158349. The cubic root of 354540 is about 70.7763909919.

Adding to 354540 its reverse (45453), we get a palindrome (399993).

The spelling of 354540 in words is "three hundred fifty-four thousand, five hundred forty".