340878780 has 360 divisors, whose sum is σ = 1232852544. Its totient is φ = 78693120.

The previous prime is 340878779. The next prime is 340878787. The reversal of 340878780 is 87878043.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340878787) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7252717 + ... + 7252763.

Almost surely, 2^340878780 is an apocalyptic number.

340878780 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 340878780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616426272).

340878780 is an abundant number, since it is smaller than the sum of its proper divisors (891973764).

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

340878780 is a wasteful number, since it uses less digits than its factorization.

340878780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 340878780 is about 18462.9028053554. The cubic root of 340878780 is about 698.5540082653.

The spelling of 340878780 in words is "three hundred forty million, eight hundred seventy-eight thousand, seven hundred eighty".