1552414440 has 128 divisors (see below), whose sum is σ = 4908729600. Its totient is φ = 391987200.

The previous prime is 1552414429. The next prime is 1552414441. The reversal of 1552414440 is 444142551.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1552414398 and 1552414407.

It is not an unprimeable number, because it can be changed into a prime (1552414441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275976 + ... + 281544.

It is an arithmetic number, because the mean of its divisors is an integer number (38349450).

Almost surely, 2^1552414440 is an apocalyptic number.

1552414440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552414440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2454364800).

1552414440 is an abundant number, since it is smaller than the sum of its proper divisors (3356315160).

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

1552414440 is a wasteful number, since it uses less digits than its factorization.

1552414440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 1552414440 is about 39400.6908568873. The cubic root of 1552414440 is about 1157.8951226604.

Adding to 1552414440 its reverse (444142551), we get a palindrome (1996556991).

The spelling of 1552414440 in words is "one billion, five hundred fifty-two million, four hundred fourteen thousand, four hundred forty".