1553440042 has 192 divisors, whose sum is σ = 3368563200. Its totient is φ = 528353280.

The previous prime is 1553440037. The next prime is 1553440061. The reversal of 1553440042 is 2400443551.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 19663759 + ... + 19663837.

It is an arithmetic number, because the mean of its divisors is an integer number (17544600).

Almost surely, 2^1553440042 is an apocalyptic number.

1553440042 is an abundant number, since it is smaller than the sum of its proper divisors (1815123158).

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

1553440042 is a wasteful number, since it uses less digits than its factorization.

1553440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1553440042 is about 39413.7037336001. The cubic root of 1553440042 is about 1158.1500541837.

Adding to 1553440042 its reverse (2400443551), we get a palindrome (3953883593).

The spelling of 1553440042 in words is "one billion, five hundred fifty-three million, four hundred forty thousand, forty-two".