771267490 has 16 divisors (see below), whose sum is σ = 1586607552. Its totient is φ = 264434544.

The previous prime is 771267481. The next prime is 771267491. The reversal of 771267490 is 94762177.

It is a super-2 number, since 2×771267490² = 1189707082261800200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (771267491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5508984 + ... + 5509123.

It is an arithmetic number, because the mean of its divisors is an integer number (99162972).

Almost surely, 2^771267490 is an apocalyptic number.

771267490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

771267490 is an abundant number, since it is smaller than the sum of its proper divisors (815340062).

771267490 is a wasteful number, since it uses less digits than its factorization.

771267490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018121.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 771267490 is about 27771.7030446460. The cubic root of 771267490 is about 917.0682865284.

The spelling of 771267490 in words is "seven hundred seventy-one million, two hundred sixty-seven thousand, four hundred ninety".