1552400334 has 48 divisors (see below), whose sum is σ = 3527269200. Its totient is φ = 492766848.

The previous prime is 1552400321. The next prime is 1552400359. The reversal of 1552400334 is 4330042551.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1552400298 and 1552400307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17737 + ... + 58475.

It is an arithmetic number, because the mean of its divisors is an integer number (73484775).

Almost surely, 2^1552400334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552400334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763634600).

1552400334 is an abundant number, since it is smaller than the sum of its proper divisors (1974868866).

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

1552400334 is a wasteful number, since it uses less digits than its factorization.

1552400334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849 (or 40846 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1552400334 is about 39400.5118494671. The cubic root of 1552400334 is about 1157.8916155819.

Adding to 1552400334 its reverse (4330042551), we get a palindrome (5882442885).

The spelling of 1552400334 in words is "one billion, five hundred fifty-two million, four hundred thousand, three hundred thirty-four".