1988570374 has 8 divisors (see below), whose sum is σ = 3408977808. Its totient is φ = 852244440.

The previous prime is 1988570371. The next prime is 1988570377. The reversal of 1988570374 is 4730758891.

It is an interprime number because it is at equal distance from previous prime (1988570371) and next prime (1988570377).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988570371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71020357 + ... + 71020384.

It is an arithmetic number, because the mean of its divisors is an integer number (426122226).

Almost surely, 2^1988570374 is an apocalyptic number.

1988570374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1988570374 is a deficient number, since it is larger than the sum of its proper divisors (1420407434).

1988570374 is a wasteful number, since it uses less digits than its factorization.

1988570374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142040750.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 1988570374 is about 44593.3893531317. The cubic root of 1988570374 is about 1257.5163922730.

The spelling of 1988570374 in words is "one billion, nine hundred eighty-eight million, five hundred seventy thousand, three hundred seventy-four".