351119640 has 128 divisors (see below), whose sum is σ = 1117163520. Its totient is φ = 88128000.

The previous prime is 351119627. The next prime is 351119641. The reversal of 351119640 is 46911153.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 351119598 and 351119607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351119641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136365 + ... + 138915.

It is an arithmetic number, because the mean of its divisors is an integer number (8727840).

Almost surely, 2^351119640 is an apocalyptic number.

351119640 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 351119640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558581760).

351119640 is an abundant number, since it is smaller than the sum of its proper divisors (766043880).

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

351119640 is a wasteful number, since it uses less digits than its factorization.

351119640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633 (or 2629 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 351119640 is about 18738.1866785450. The cubic root of 351119640 is about 705.4805435600.

The spelling of 351119640 in words is "three hundred fifty-one million, one hundred nineteen thousand, six hundred forty".