10387740 has 48 divisors (see below), whose sum is σ = 31731840. Its totient is φ = 2518080.

The previous prime is 10387739. The next prime is 10387753. The reversal of 10387740 is 4778301.

It is a happy number.

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 = 10387698 and 10387707.

It is a congruent number.

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, 7210 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (661080).

Almost surely, 2^10387740 is an apocalyptic number.

10387740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10387740 is an abundant number, since it is smaller than the sum of its proper divisors (21344100).

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

10387740 is a wasteful number, since it uses less digits than its factorization.

10387740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762 (or 15760 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 10387740 is about 3223.0017064842. The cubic root of 10387740 is about 218.1927705992.

It can be divided in two parts, 1038 and 7740, that added together give a palindrome (8778).

The spelling of 10387740 in words is "ten million, three hundred eighty-seven thousand, seven hundred forty".