2946780 has 120 divisors (see below), whose sum is σ = 9879408. Its totient is φ = 732672.

The previous prime is 2946761. The next prime is 2946799. The reversal of 2946780 is 876492.

It is an interprime number because it is at equal distance from previous prime (2946761) and next prime (2946799).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27487 + ... + 27593.

2^2946780 is an apocalyptic number.

2946780 is a gapful number since it is divisible by the number (20) 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 2946780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4939704).

2946780 is an abundant number, since it is smaller than the sum of its proper divisors (6932628).

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

2946780 is a wasteful number, since it uses less digits than its factorization.

2946780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2946780 is about 1716.6187695583. The cubic root of 2946780 is about 143.3670132980.

The spelling of 2946780 in words is "two million, nine hundred forty-six thousand, seven hundred eighty".