353489940 has 48 divisors (see below), whose sum is σ = 1099748160. Its totient is φ = 94263840.

The previous prime is 353489909. The next prime is 353489951. The reversal of 353489940 is 49984353.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 326766 + ... + 327845.

It is an arithmetic number, because the mean of its divisors is an integer number (22911420).

Almost surely, 2^353489940 is an apocalyptic number.

353489940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

353489940 is an abundant number, since it is smaller than the sum of its proper divisors (746258220).

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

353489940 is a wasteful number, since it uses less digits than its factorization.

353489940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654629 (or 654621 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 353489940 is about 18801.3281445753. The cubic root of 353489940 is about 707.0644782603.

The spelling of 353489940 in words is "three hundred fifty-three million, four hundred eighty-nine thousand, nine hundred forty".