354002440 has 48 divisors (see below), whose sum is σ = 875509740. Its totient is φ = 128726400.

The previous prime is 354002417. The next prime is 354002447. The reversal of 354002440 is 44200453.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 348867684 + 5134756 = 18678^2 + 2266^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (354002447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31731 + ... + 41410.

Almost surely, 2^354002440 is an apocalyptic number.

It is an amenable number.

354002440 is an abundant number, since it is smaller than the sum of its proper divisors (521507300).

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

354002440 is a wasteful number, since it uses less digits than its factorization.

354002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73174 (or 73159 counting only the distinct ones).

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

The square root of 354002440 is about 18814.9525643835. The cubic root of 354002440 is about 707.4060208050.

Adding to 354002440 its reverse (44200453), we get a palindrome (398202893).

The spelling of 354002440 in words is "three hundred fifty-four million, two thousand, four hundred forty".