2620464 has 80 divisors (see below), whose sum is σ = 8451840. Its totient is φ = 679680.

The previous prime is 2620441. The next prime is 2620477. The reversal of 2620464 is 4640262.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3342 + ... + 4050.

It is an arithmetic number, because the mean of its divisors is an integer number (105648).

2^2620464 is an apocalyptic number.

2620464 is a gapful number since it is divisible by the number (24) 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 2620464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4225920).

2620464 is an abundant number, since it is smaller than the sum of its proper divisors (5831376).

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

2620464 is a wasteful number, since it uses less digits than its factorization.

2620464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2620464 is about 1618.7847293572. The cubic root of 2620464 is about 137.8667059915.

The spelling of 2620464 in words is "two million, six hundred twenty thousand, four hundred sixty-four".