2477940 has 24 divisors (see below), whose sum is σ = 6938400. Its totient is φ = 660768.

The previous prime is 2477939. The next prime is 2477947. The reversal of 2477940 is 497742.

It is a super-2 number, since 2×2477940² = 12280373287200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2477947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20590 + ... + 20709.

It is an arithmetic number, because the mean of its divisors is an integer number (289100).

2^2477940 is an apocalyptic number.

2477940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2477940 is an abundant number, since it is smaller than the sum of its proper divisors (4460460).

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

2477940 is a wasteful number, since it uses less digits than its factorization.

2477940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41311 (or 41309 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2477940 is about 1574.1473882709. The cubic root of 2477940 is about 135.3205005075.

The spelling of 2477940 in words is "two million, four hundred seventy-seven thousand, nine hundred forty".