2047702440 has 64 divisors (see below), whose sum is σ = 7020696960. Its totient is φ = 468046080.

The previous prime is 2047702429. The next prime is 2047702457. The reversal of 2047702440 is 442077402.

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

It is a junction number, because it is equal to n+sod(n) for n = 2047702398 and 2047702407.

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, 1218031 + ... + 1219710.

It is an arithmetic number, because the mean of its divisors is an integer number (109698390).

Almost surely, 2^2047702440 is an apocalyptic number.

2047702440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2047702440 is an abundant number, since it is smaller than the sum of its proper divisors (4972994520).

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

2047702440 is a wasteful number, since it uses less digits than its factorization.

2047702440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437762 (or 2437758 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 2047702440 is about 45251.5462719231. The cubic root of 2047702440 is about 1269.8593350726.

Adding to 2047702440 its reverse (442077402), we get a palindrome (2489779842).

The spelling of 2047702440 in words is "two billion, forty-seven million, seven hundred two thousand, four hundred forty".