1552440998 has 4 divisors (see below), whose sum is σ = 2328661500. Its totient is φ = 776220498.

The previous prime is 1552440979. The next prime is 1552441001. The reversal of 1552440998 is 8990442551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8990442551 = 88547 ⋅101533.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388110248 + ... + 388110251.

It is an arithmetic number, because the mean of its divisors is an integer number (582165375).

Almost surely, 2^1552440998 is an apocalyptic number.

1552440998 is a deficient number, since it is larger than the sum of its proper divisors (776220502).

1552440998 is an equidigital number, since it uses as much as digits as its factorization.

1552440998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776220501.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 1552440998 is about 39401.0278799932. The cubic root of 1552440998 is about 1157.9017255371.

The spelling of 1552440998 in words is "one billion, five hundred fifty-two million, four hundred forty thousand, nine hundred ninety-eight".