354451540 has 12 divisors (see below), whose sum is σ = 744348276. Its totient is φ = 141780608.

The previous prime is 354451523. The next prime is 354451549. The reversal of 354451540 is 45154453.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 233539524 + 120912016 = 15282^2 + 10996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354451549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8861269 + ... + 8861308.

It is an arithmetic number, because the mean of its divisors is an integer number (62029023).

Almost surely, 2^354451540 is an apocalyptic number.

It is an amenable number.

354451540 is an abundant number, since it is smaller than the sum of its proper divisors (389896736).

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

354451540 is a wasteful number, since it uses less digits than its factorization.

354451540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722586 (or 17722584 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 354451540 is about 18826.8834383177. The cubic root of 354451540 is about 707.7050411467.

The spelling of 354451540 in words is "three hundred fifty-four million, four hundred fifty-one thousand, five hundred forty".