371990 has 8 divisors (see below), whose sum is σ = 669600. Its totient is φ = 148792.

The previous prime is 371981. The next prime is 371999. The reversal of 371990 is 99173.

371990 = T₈₀ + T₈₁ + ... + T₁₃₉.

It is an interprime number because it is at equal distance from previous prime (371981) and next prime (371999).

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 371990.

It is not an unprimeable number, because it can be changed into a prime (371999) 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, 18590 + ... + 18609.

It is an arithmetic number, because the mean of its divisors is an integer number (83700).

2³⁷¹⁹⁹⁰ is an apocalyptic number.

371990 is a deficient number, since it is larger than the sum of its proper divisors (297610).

371990 is a wasteful number, since it uses less digits than its factorization.

371990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37206.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 371990 is about 609.9098294010. The cubic root of 371990 is about 71.9190190343.

The spelling of 371990 in words is "three hundred seventy-one thousand, nine hundred ninety".