1020072774 has 32 divisors (see below), whose sum is σ = 2347257600. Its totient is φ = 289491552.

The previous prime is 1020072769. The next prime is 1020072881. The reversal of 1020072774 is 4772700201.

1020072774 = 421² + 422² + ... + 1463².

1020072774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75244 + ... + 87759.

It is an arithmetic number, because the mean of its divisors is an integer number (73351800).

Almost surely, 2^1020072774 is an apocalyptic number.

1020072774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1020072774 is an abundant number, since it is smaller than the sum of its proper divisors (1327184826).

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

1020072774 is a wasteful number, since it uses less digits than its factorization.

1020072774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163164.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 1020072774 is about 31938.5781461855. The cubic root of 1020072774 is about 1006.6466488473.

Adding to 1020072774 its reverse (4772700201), we get a palindrome (5792772975).

The spelling of 1020072774 in words is "one billion, twenty million, seventy-two thousand, seven hundred seventy-four".