2388400281 has 12 divisors (see below), whose sum is σ = 3491477808. Its totient is φ = 1573082424.

The previous prime is 2388400271. The next prime is 2388400297. The reversal of 2388400281 is 1820048832.

It is a happy number.

It is not a de Polignac number, because 2388400281 - 2¹⁰ = 2388399257 is a prime.

It is a super-2 number, since 2×2388400281² = 11408911804561757922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2388400271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597915 + ... + 1599408.

It is an arithmetic number, because the mean of its divisors is an integer number (290956484).

Almost surely, 2^2388400281 is an apocalyptic number.

It is an amenable number.

2388400281 is a deficient number, since it is larger than the sum of its proper divisors (1103077527).

2388400281 is a wasteful number, since it uses less digits than its factorization.

2388400281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197412 (or 3197409 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 2388400281 is about 48871.2623225552. The cubic root of 2388400281 is about 1336.7054062303.

The spelling of 2388400281 in words is "two billion, three hundred eighty-eight million, four hundred thousand, two hundred eighty-one".