350420040 has 128 divisors (see below), whose sum is σ = 1229616000. Its totient is φ = 88521984.

The previous prime is 350420033. The next prime is 350420069. The reversal of 350420040 is 40024053.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 350419995 and 350420022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11982 + ... + 29058.

It is an arithmetic number, because the mean of its divisors is an integer number (9606375).

Almost surely, 2^350420040 is an apocalyptic number.

350420040 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 350420040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614808000).

350420040 is an abundant number, since it is smaller than the sum of its proper divisors (879195960).

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

350420040 is a wasteful number, since it uses less digits than its factorization.

350420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17116 (or 17106 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 350420040 is about 18719.5096089614. The cubic root of 350420040 is about 705.0116792995.

Adding to 350420040 its reverse (40024053), we get a palindrome (390444093).

The spelling of 350420040 in words is "three hundred fifty million, four hundred twenty thousand, forty".