1894149000 has 96 divisors (see below), whose sum is σ = 6402254040. Its totient is φ = 505104000.

The previous prime is 1894148987. The next prime is 1894149013. The reversal of 1894149000 is 9414981.

It is an interprime number because it is at equal distance from previous prime (1894148987) and next prime (1894149013).

It can be written as a sum of positive squares in 4 ways, for example, as 325513764 + 1568635236 = 18042^2 + 39606^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96231 + ... + 114230.

Almost surely, 2^1894149000 is an apocalyptic number.

1894149000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1894149000 is an abundant number, since it is smaller than the sum of its proper divisors (4508105040).

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

1894149000 is a wasteful number, since it uses less digits than its factorization.

1894149000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210488 (or 210471 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1894149000 is about 43521.8221125908. The cubic root of 1894149000 is about 1237.2896489725.

The spelling of 1894149000 in words is "one billion, eight hundred ninety-four million, one hundred forty-nine thousand".