1533134440 has 64 divisors (see below), whose sum is σ = 3482328960. Its totient is φ = 607461120.

The previous prime is 1533134431. The next prime is 1533134461. The reversal of 1533134440 is 444313351.

It is a super-2 number, since 2×1533134440² = 4701002422228227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1533134399 and 1533134408.

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, 3147877 + ... + 3148363.

It is an arithmetic number, because the mean of its divisors is an integer number (54411390).

Almost surely, 2^1533134440 is an apocalyptic number.

1533134440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1533134440 is an abundant number, since it is smaller than the sum of its proper divisors (1949194520).

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

1533134440 is a wasteful number, since it uses less digits than its factorization.

1533134440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1533134440 is about 39155.2606938072. The cubic root of 1533134440 is about 1153.0817004425.

Adding to 1533134440 its reverse (444313351), we get a palindrome (1977447791).

The spelling of 1533134440 in words is "one billion, five hundred thirty-three million, one hundred thirty-four thousand, four hundred forty".