2472780 has 24 divisors (see below), whose sum is σ = 6923952. Its totient is φ = 659392.

The previous prime is 2472737. The next prime is 2472781. The reversal of 2472780 is 872742.

It is a super-2 number, since 2×2472780² = 12229281856800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2472781) 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, 20547 + ... + 20666.

It is an arithmetic number, because the mean of its divisors is an integer number (288498).

2^2472780 is an apocalyptic number.

2472780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2472780 is an abundant number, since it is smaller than the sum of its proper divisors (4451172).

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

2472780 is a wasteful number, since it uses less digits than its factorization.

2472780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41225 (or 41223 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 2472780 is about 1572.5075516512. The cubic root of 2472780 is about 135.2265058964.

The spelling of 2472780 in words is "two million, four hundred seventy-two thousand, seven hundred eighty".