1532051440 has 40 divisors (see below), whose sum is σ = 3684853440. Its totient is φ = 591687936.

The previous prime is 1532051431. The next prime is 1532051483. The reversal of 1532051440 is 441502351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1532051440² = 4694363229612147200, which contains 22 as substring.

It is a congruent number.

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, 327864 + ... + 332503.

It is an arithmetic number, because the mean of its divisors is an integer number (92121336).

Almost surely, 2^1532051440 is an apocalyptic number.

1532051440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1532051440 is an abundant number, since it is smaller than the sum of its proper divisors (2152802000).

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

1532051440 is a wasteful number, since it uses less digits than its factorization.

1532051440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660409 (or 660403 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1532051440 is about 39141.4286913495. The cubic root of 1532051440 is about 1152.8101257281.

Adding to 1532051440 its reverse (441502351), we get a palindrome (1973553791).

The spelling of 1532051440 in words is "one billion, five hundred thirty-two million, fifty-one thousand, four hundred forty".