1552431404 has 18 divisors (see below), whose sum is σ = 2867270364. Its totient is φ = 735361560.

The previous prime is 1552431371. The next prime is 1552431407. The reversal of 1552431404 is 4041342551.

It is a super-2 number, since 2×1552431404² = 4820086528250822432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1552431407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 536102 + ... + 538989.

It is an arithmetic number, because the mean of its divisors is an integer number (159292798).

Almost surely, 2^1552431404 is an apocalyptic number.

It is an amenable number.

1552431404 is a deficient number, since it is larger than the sum of its proper divisors (1314838960).

1552431404 is a wasteful number, since it uses less digits than its factorization.

1552431404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075133 (or 1075112 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1552431404 is about 39400.9061317123. The cubic root of 1552431404 is about 1157.8993402759.

Adding to 1552431404 its reverse (4041342551), we get a palindrome (5593773955).

The spelling of 1552431404 in words is "one billion, five hundred fifty-two million, four hundred thirty-one thousand, four hundred four".