1534220742 has 8 divisors (see below), whose sum is σ = 3068441496. Its totient is φ = 511406912.

The previous prime is 1534220729. The next prime is 1534220747. The reversal of 1534220742 is 2470224351.

It is a sphenic number, since it is the product of 3 distinct primes.

1534220742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534220747) 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 3 ways as a sum of consecutive naturals, for example, 127851723 + ... + 127851734.

It is an arithmetic number, because the mean of its divisors is an integer number (383555187).

Almost surely, 2^1534220742 is an apocalyptic number.

1534220742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1534220742 is a wasteful number, since it uses less digits than its factorization.

1534220742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255703462.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 1534220742 is about 39169.1299622547. The cubic root of 1534220742 is about 1153.3539747235.

The spelling of 1534220742 in words is "one billion, five hundred thirty-four million, two hundred twenty thousand, seven hundred forty-two".