1553402334 has 64 divisors (see below), whose sum is σ = 3465607680. Its totient is φ = 460187520.

The previous prime is 1553402287. The next prime is 1553402341. The reversal of 1553402334 is 4332043551.

It is a super-2 number, since 2×1553402334² = 4826117622553295112, which contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1255164 + ... + 1256400.

It is an arithmetic number, because the mean of its divisors is an integer number (54150120).

Almost surely, 2^1553402334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553402334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732803840).

1553402334 is an abundant number, since it is smaller than the sum of its proper divisors (1912205346).

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

1553402334 is a wasteful number, since it uses less digits than its factorization.

1553402334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 1553402334 is about 39413.2253691575. The cubic root of 1553402334 is about 1158.1406831803.

Adding to 1553402334 its reverse (4332043551), we get a palindrome (5885445885).

The spelling of 1553402334 in words is "one billion, five hundred fifty-three million, four hundred two thousand, three hundred thirty-four".