2634780 has 24 divisors (see below), whose sum is σ = 7377552. Its totient is φ = 702592.

The previous prime is 2634769. The next prime is 2634781. The reversal of 2634780 is 874362.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is a d-powerful number, because it can be written as 2¹¹ + 6² + 3¹² + 4⁶ + 7 + 8⁷ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634781) 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, 21897 + ... + 22016.

It is an arithmetic number, because the mean of its divisors is an integer number (307398).

2^2634780 is an apocalyptic number.

2634780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634780 is an abundant number, since it is smaller than the sum of its proper divisors (4742772).

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

2634780 is a wasteful number, since it uses less digits than its factorization.

2634780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43925 (or 43923 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2634780 is about 1623.2005421389. The cubic root of 2634780 is about 138.1173125537.

The spelling of 2634780 in words is "two million, six hundred thirty-four thousand, seven hundred eighty".