1990762 has 4 divisors (see below), whose sum is σ = 2986146. Its totient is φ = 995380.

The previous prime is 1990759. The next prime is 1990787. The reversal of 1990762 is 2670991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2670991 = 31 ⋅86161.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 251001 = 1319^2 + 501^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497689 + ... + 497692.

2^1990762 is an apocalyptic number.

1990762 is a deficient number, since it is larger than the sum of its proper divisors (995384).

1990762 is an equidigital number, since it uses as much as digits as its factorization.

1990762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995383.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1990762 is about 1410.9436558559. The cubic root of 1990762 is about 125.7978197028.

The spelling of 1990762 in words is "one million, nine hundred ninety thousand, seven hundred sixty-two".