1990706367 has 16 divisors (see below), whose sum is σ = 2862268640. Its totient is φ = 1223413632.

The previous prime is 1990706357. The next prime is 1990706369. The reversal of 1990706367 is 7636070991.

It is not a de Polignac number, because 1990706367 - 2⁸ = 1990706111 is a prime.

It is a super-2 number, since 2×1990706367² = 7925823679228677378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990706369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4192 + ... + 63237.

It is an arithmetic number, because the mean of its divisors is an integer number (178891790).

Almost surely, 2^1990706367 is an apocalyptic number.

1990706367 is a deficient number, since it is larger than the sum of its proper divisors (871562273).

1990706367 is a wasteful number, since it uses less digits than its factorization.

1990706367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68202.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 1990706367 is about 44617.3325849944. The cubic root of 1990706367 is about 1257.9664786088.

The spelling of 1990706367 in words is "one billion, nine hundred ninety million, seven hundred six thousand, three hundred sixty-seven".