1532634240 has 128 divisors (see below), whose sum is σ = 5142513600. Its totient is φ = 387182592.

The previous prime is 1532634223. The next prime is 1532634263. The reversal of 1532634240 is 424362351.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1532634198 and 1532634207.

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, 15474 + ... + 57486.

Almost surely, 2^1532634240 is an apocalyptic number.

1532634240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1532634240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571256800).

1532634240 is an abundant number, since it is smaller than the sum of its proper divisors (3609879360).

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

1532634240 is a wasteful number, since it uses less digits than its factorization.

1532634240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42054 (or 42042 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1532634240 is about 39148.8727807072. The cubic root of 1532634240 is about 1152.9562854346.

Adding to 1532634240 its reverse (424362351), we get a palindrome (1956996591).

The spelling of 1532634240 in words is "one billion, five hundred thirty-two million, six hundred thirty-four thousand, two hundred forty".