15400224452 has 12 divisors (see below), whose sum is σ = 28535710140. Its totient is φ = 7247164416.

The previous prime is 15400224443. The next prime is 15400224461. The reversal of 15400224452 is 25442200451.

It is an interprime number because it is at equal distance from previous prime (15400224443) and next prime (15400224461).

It can be written as a sum of positive squares in 2 ways, for example, as 8724680836 + 6675543616 = 93406^2 + 81704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113236877 + ... + 113237012.

It is an arithmetic number, because the mean of its divisors is an integer number (2377975845).

Almost surely, 2^15400224452 is an apocalyptic number.

It is an amenable number.

15400224452 is a deficient number, since it is larger than the sum of its proper divisors (13135485688).

15400224452 is a wasteful number, since it uses less digits than its factorization.

15400224452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226473910 (or 226473908 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 15400224452 in words is "fifteen billion, four hundred million, two hundred twenty-four thousand, four hundred fifty-two".