20077330 has 32 divisors (see below), whose sum is σ = 44481024. Its totient is φ = 6353856.

The previous prime is 20077327. The next prime is 20077333. The reversal of 20077330 is 3377002.

20077330 = T₁₇₅₁ + T₁₇₅₂ + ... + T₁₇₆₃.

It is an interprime number because it is at equal distance from previous prime (20077327) and next prime (20077333).

It is not an unprimeable number, because it can be changed into a prime (20077333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10122 + ... + 11941.

It is an arithmetic number, because the mean of its divisors is an integer number (1390032).

Almost surely, 2^20077330 is an apocalyptic number.

20077330 is an abundant number, since it is smaller than the sum of its proper divisors (24403694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20077330 is a wasteful number, since it uses less digits than its factorization.

20077330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22090.

The product of its (nonzero) digits is 882, while the sum is 22.

The square root of 20077330 is about 4480.7733707475. The cubic root of 20077330 is about 271.7911549265.

The spelling of 20077330 in words is "twenty million, seventy-seven thousand, three hundred thirty".