1956634490 has 8 divisors (see below), whose sum is σ = 3521942100. Its totient is φ = 782653792.

The previous prime is 1956634451. The next prime is 1956634507. The reversal of 1956634490 is 944366591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1824912961 + 131721529 = 42719^2 + 11477^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97831715 + ... + 97831734.

Almost surely, 2^1956634490 is an apocalyptic number.

1956634490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1956634490 is a deficient number, since it is larger than the sum of its proper divisors (1565307610).

1956634490 is a wasteful number, since it uses less digits than its factorization.

1956634490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195663456.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 1956634490 is about 44233.8613507797. The cubic root of 1956634490 is about 1250.7482432163.

The spelling of 1956634490 in words is "one billion, nine hundred fifty-six million, six hundred thirty-four thousand, four hundred ninety".