1536474644 has 6 divisors (see below), whose sum is σ = 2688830634. Its totient is φ = 768237320.

The previous prime is 1536474623. The next prime is 1536474661. The reversal of 1536474644 is 4464746351.

It can be written as a sum of positive squares in only one way, i.e., 1053002500 + 483472144 = 32450^2 + 21988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1536474595 and 1536474604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192059327 + ... + 192059334.

It is an arithmetic number, because the mean of its divisors is an integer number (448138439).

Almost surely, 2^1536474644 is an apocalyptic number.

It is an amenable number.

1536474644 is a deficient number, since it is larger than the sum of its proper divisors (1152355990).

1536474644 is a wasteful number, since it uses less digits than its factorization.

1536474644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384118665 (or 384118663 counting only the distinct ones).

The product of its digits is 967680, while the sum is 44.

The square root of 1536474644 is about 39197.8908106036. The cubic root of 1536474644 is about 1153.9184903787.

The spelling of 1536474644 in words is "one billion, five hundred thirty-six million, four hundred seventy-four thousand, six hundred forty-four".