1534099840 has 384 divisors, whose sum is σ = 4747014720. Its totient is φ = 469647360.

The previous prime is 1534099813. The next prime is 1534099841. The reversal of 1534099840 is 489904351.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534099841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21607005 + ... + 21607075.

Almost surely, 2^1534099840 is an apocalyptic number.

1534099840 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 1534099840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2373507360).

1534099840 is an abundant number, since it is smaller than the sum of its proper divisors (3212914880).

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

1534099840 is a wasteful number, since it uses less digits than its factorization.

1534099840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1534099840 is about 39167.5865991256. The cubic root of 1534099840 is about 1153.3236778087.

The spelling of 1534099840 in words is "one billion, five hundred thirty-four million, ninety-nine thousand, eight hundred forty".