1022772740 has 48 divisors (see below), whose sum is σ = 2444964480. Its totient is φ = 355745280.

The previous prime is 1022772727. The next prime is 1022772761. The reversal of 1022772740 is 472772201.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1022772697 and 1022772706.

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, 96005 + ... + 106124.

It is an arithmetic number, because the mean of its divisors is an integer number (50936760).

Almost surely, 2^1022772740 is an apocalyptic number.

1022772740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022772740 is an abundant number, since it is smaller than the sum of its proper divisors (1422191740).

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

1022772740 is a wasteful number, since it uses less digits than its factorization.

1022772740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202172 (or 202170 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 1022772740 is about 31980.8183134828. The cubic root of 1022772740 is about 1007.5340094877.

The spelling of 1022772740 in words is "one billion, twenty-two million, seven hundred seventy-two thousand, seven hundred forty".