1972049226 has 32 divisors (see below), whose sum is σ = 4534548480. Its totient is φ = 560066736.

The previous prime is 1972049179. The next prime is 1972049239. The reversal of 1972049226 is 6229402791.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 133566 + ... + 147593.

It is an arithmetic number, because the mean of its divisors is an integer number (141704640).

Almost surely, 2^1972049226 is an apocalyptic number.

1972049226 is an abundant number, since it is smaller than the sum of its proper divisors (2562499254).

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

1972049226 is a wasteful number, since it uses less digits than its factorization.

1972049226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281338.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1972049226 is about 44407.7608757749. The cubic root of 1972049226 is about 1254.0241989688.

The spelling of 1972049226 in words is "one billion, nine hundred seventy-two million, forty-nine thousand, two hundred twenty-six".