2402730 has 64 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 581760.

The previous prime is 2402707. The next prime is 2402731. The reversal of 2402730 is 372042.

It is a happy number.

It is a super-2 number, since 2×2402730² = 11546222905800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2402731) 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, 2566 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2^2402730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2402730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3499200).

2402730 is an abundant number, since it is smaller than the sum of its proper divisors (4595670).

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

2402730 is a wasteful number, since it uses less digits than its factorization.

2402730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2402730 is about 1550.0741917728. The cubic root of 2402730 is about 133.9373361121.

Adding to 2402730 its reverse (372042), we get a palindrome (2774772).

The spelling of 2402730 in words is "two million, four hundred two thousand, seven hundred thirty".