1540032342 has 16 divisors (see below), whose sum is σ = 3138179760. Its totient is φ = 503658272.

The previous prime is 1540032341. The next prime is 1540032349. The reversal of 1540032342 is 2432300451.

It is a super-2 number, since 2×1540032342² = 4743399228812009928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540032341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2421117 + ... + 2421752.

It is an arithmetic number, because the mean of its divisors is an integer number (196136235).

Almost surely, 2^1540032342 is an apocalyptic number.

1540032342 is an abundant number, since it is smaller than the sum of its proper divisors (1598147418).

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

1540032342 is a wasteful number, since it uses less digits than its factorization.

1540032342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842927.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1540032342 is about 39243.2458137703. The cubic root of 1540032342 is about 1154.8084343373.

Adding to 1540032342 its reverse (2432300451), we get a palindrome (3972332793).

The spelling of 1540032342 in words is "one billion, five hundred forty million, thirty-two thousand, three hundred forty-two".