2197238770 has 16 divisors (see below), whose sum is σ = 4082611968. Its totient is φ = 850543920.

The previous prime is 2197238761. The next prime is 2197238777. The reversal of 2197238770 is 778327912.

It is a happy number.

It is a super-2 number, since 2×2197238770² = 9655716424782225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2197238770.

It is not an unprimeable number, because it can be changed into a prime (2197238777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3543624 + ... + 3544243.

It is an arithmetic number, because the mean of its divisors is an integer number (255163248).

Almost surely, 2^2197238770 is an apocalyptic number.

2197238770 is a deficient number, since it is larger than the sum of its proper divisors (1885373198).

2197238770 is a wasteful number, since it uses less digits than its factorization.

2197238770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087905.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 2197238770 is about 46874.7135457914. The cubic root of 2197238770 is about 1300.0470929686.

The spelling of 2197238770 in words is "two billion, one hundred ninety-seven million, two hundred thirty-eight thousand, seven hundred seventy".