1072620770 has 32 divisors (see below), whose sum is σ = 2146314240. Its totient is φ = 383267520.

The previous prime is 1072620749. The next prime is 1072620779. The reversal of 1072620770 is 770262701.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1072620779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129050 + ... + 137109.

It is an arithmetic number, because the mean of its divisors is an integer number (67072320).

Almost surely, 2^1072620770 is an apocalyptic number.

1072620770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072620770 is an abundant number, since it is smaller than the sum of its proper divisors (1073693470).

1072620770 is a wasteful number, since it uses less digits than its factorization.

1072620770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266210.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 1072620770 is about 32750.8896062382. The cubic root of 1072620770 is about 1023.6435024335.

The spelling of 1072620770 in words is "one billion, seventy-two million, six hundred twenty thousand, seven hundred seventy".