351222040 has 128 divisors (see below), whose sum is σ = 916090560. Its totient is φ = 120029184.

The previous prime is 351222037. The next prime is 351222059. The reversal of 351222040 is 40222153.

It is a super-4 number, since 4×351222040⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 351221999 and 351222017.

It is a congruent number.

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, 591984 + ... + 592576.

Almost surely, 2^351222040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351222040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458045280).

351222040 is an abundant number, since it is smaller than the sum of its proper divisors (564868520).

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

351222040 is a wasteful number, since it uses less digits than its factorization.

351222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 351222040 is about 18740.9188675476. The cubic root of 351222040 is about 705.5491186531.

Adding to 351222040 its reverse (40222153), we get a palindrome (391444193).

It can be divided in two parts, 3512 and 22040, that added together give a palindrome (25552).

The spelling of 351222040 in words is "three hundred fifty-one million, two hundred twenty-two thousand, forty".