15400342012 has 48 divisors (see below), whose sum is σ = 29534367744. Its totient is φ = 6968408000.

The previous prime is 15400341989. The next prime is 15400342031. The reversal of 15400342012 is 21024300451.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 16365462 + ... + 16366402.

It is an arithmetic number, because the mean of its divisors is an integer number (615299328).

Almost surely, 2^15400342012 is an apocalyptic number.

It is an amenable number.

15400342012 is a deficient number, since it is larger than the sum of its proper divisors (14134025732).

15400342012 is a wasteful number, since it uses less digits than its factorization.

15400342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 15400342012 its reverse (21024300451), we get a palindrome (36424642463).

The spelling of 15400342012 in words is "fifteen billion, four hundred million, three hundred forty-two thousand, twelve".