1930438077 has 8 divisors (see below), whose sum is σ = 2725324416. Its totient is φ = 1211255232.

The previous prime is 1930438073. The next prime is 1930438117. The reversal of 1930438077 is 7708340391.

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

It is not a de Polignac number, because 1930438077 - 2² = 1930438073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930438073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18925813 + ... + 18925914.

It is an arithmetic number, because the mean of its divisors is an integer number (340665552).

Almost surely, 2^1930438077 is an apocalyptic number.

1930438077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1930438077 is a deficient number, since it is larger than the sum of its proper divisors (794886339).

1930438077 is a wasteful number, since it uses less digits than its factorization.

1930438077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37851747.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 1930438077 is about 43936.7508698584. The cubic root of 1930438077 is about 1245.1412616927.

The spelling of 1930438077 in words is "one billion, nine hundred thirty million, four hundred thirty-eight thousand, seventy-seven".