19972010 has 32 divisors (see below), whose sum is σ = 37832400. Its totient is φ = 7580160.

The previous prime is 19972003. The next prime is 19972019. The reversal of 19972010 is 1027991.

It can be written as a sum of positive squares in 8 ways, for example, as 638401 + 19333609 = 799^2 + 4397^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (19972019) 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, 17126 + ... + 18254.

Almost surely, 2^19972010 is an apocalyptic number.

19972010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19972010 is a deficient number, since it is larger than the sum of its proper divisors (17860390).

19972010 is a wasteful number, since it uses less digits than its factorization.

19972010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 19972010 is about 4469.0054822074. The cubic root of 19972010 is about 271.3150749599.

The spelling of 19972010 in words is "nineteen million, nine hundred seventy-two thousand, ten".