2397478240 has 48 divisors (see below), whose sum is σ = 5732315568. Its totient is φ = 947431936.

The previous prime is 2397478177. The next prime is 2397478247. The reversal of 2397478240 is 428747932.

2397478240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2397478240² = 11495803822546995200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397478247) 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, 76987 + ... + 103546.

It is an arithmetic number, because the mean of its divisors is an integer number (119423241).

Almost surely, 2^2397478240 is an apocalyptic number.

2397478240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2397478240 is an abundant number, since it is smaller than the sum of its proper divisors (3334837328).

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

2397478240 is a wasteful number, since it uses less digits than its factorization.

2397478240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180631 (or 180623 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 2397478240 is about 48964.0504860454. The cubic root of 2397478240 is about 1338.3968054848.

The spelling of 2397478240 in words is "two billion, three hundred ninety-seven million, four hundred seventy-eight thousand, two hundred forty".