354249940 has 24 divisors (see below), whose sum is σ = 811554912. Its totient is φ = 128818080.

The previous prime is 354249913. The next prime is 354249941. The reversal of 354249940 is 49942453.

It is a super-3 number, since 3×354249940³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354249893 and 354249902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354249941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804894 + ... + 805333.

It is an arithmetic number, because the mean of its divisors is an integer number (33814788).

Almost surely, 2^354249940 is an apocalyptic number.

It is an amenable number.

354249940 is an abundant number, since it is smaller than the sum of its proper divisors (457304972).

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

354249940 is a wasteful number, since it uses less digits than its factorization.

354249940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610247 (or 1610245 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 354249940 is about 18821.5286307994. The cubic root of 354249940 is about 707.5708428356.

The spelling of 354249940 in words is "three hundred fifty-four million, two hundred forty-nine thousand, nine hundred forty".