1552400442 has 12 divisors (see below), whose sum is σ = 3363534330. Its totient is φ = 517466808.

The previous prime is 1552400431. The next prime is 1552400471. The reversal of 1552400442 is 2440042551.

It can be written as a sum of positive squares in only one way, i.e., 1514688561 + 37711881 = 38919^2 + 6141^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43122217 + ... + 43122252.

Almost surely, 2^1552400442 is an apocalyptic number.

1552400442 is an abundant number, since it is smaller than the sum of its proper divisors (1811133888).

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

1552400442 is a wasteful number, since it uses less digits than its factorization.

1552400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86244477 (or 86244474 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1552400442 is about 39400.5132200077. The cubic root of 1552400442 is about 1157.8916424333.

Adding to 1552400442 its reverse (2440042551), we get a palindrome (3992442993).

The spelling of 1552400442 in words is "one billion, five hundred fifty-two million, four hundred thousand, four hundred forty-two".