1401224552 has 128 divisors (see below), whose sum is σ = 3454617600. Its totient is φ = 517708800.

The previous prime is 1401224543. The next prime is 1401224557. The reversal of 1401224552 is 2554221041.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1401224557) 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, 653402 + ... + 655542.

It is an arithmetic number, because the mean of its divisors is an integer number (26989200).

Almost surely, 2^1401224552 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 1401224552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727308800).

1401224552 is an abundant number, since it is smaller than the sum of its proper divisors (2053393048).

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

1401224552 is a wasteful number, since it uses less digits than its factorization.

1401224552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2223 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1401224552 is about 37432.9340554544. The cubic root of 1401224552 is about 1119.0150119789.

Adding to 1401224552 its reverse (2554221041), we get a palindrome (3955445593).

The spelling of 1401224552 in words is "one billion, four hundred one million, two hundred twenty-four thousand, five hundred fifty-two".