1552405404 has 96 divisors (see below), whose sum is σ = 4095463680. Its totient is φ = 453606400.

The previous prime is 1552405403. The next prime is 1552405417. The reversal of 1552405404 is 4045042551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552405403) 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 31 ways as a sum of consecutive naturals, for example, 410884 + ... + 414644.

It is an arithmetic number, because the mean of its divisors is an integer number (42661080).

Almost surely, 2^1552405404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552405404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047731840).

1552405404 is an abundant number, since it is smaller than the sum of its proper divisors (2543058276).

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

1552405404 is a wasteful number, since it uses less digits than its factorization.

1552405404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891 (or 3889 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1552405404 is about 39400.5761886803. The cubic root of 1552405404 is about 1157.8928761039.

Adding to 1552405404 its reverse (4045042551), we get a palindrome (5597447955).

The spelling of 1552405404 in words is "one billion, five hundred fifty-two million, four hundred five thousand, four hundred four".