15380280040 has 32 divisors (see below), whose sum is σ = 34699956480. Its totient is φ = 6135342912.

The previous prime is 15380280029. The next prime is 15380280053. The reversal of 15380280040 is 4008208351.

It is a junction number, because it is equal to n+sod(n) for n = 15380279984 and 15380280011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509172 + ... + 538531.

It is an arithmetic number, because the mean of its divisors is an integer number (1084373640).

Almost surely, 2^15380280040 is an apocalyptic number.

15380280040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15380280040 is an abundant number, since it is smaller than the sum of its proper divisors (19319676440).

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

15380280040 is a wasteful number, since it uses less digits than its factorization.

15380280040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048081 (or 1048077 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 15380280040 its reverse (4008208351), we get a palindrome (19388488391).

The spelling of 15380280040 in words is "fifteen billion, three hundred eighty million, two hundred eighty thousand, forty".