1910972420 has 24 divisors (see below), whose sum is σ = 4586334144. Its totient is φ = 655190496.

The previous prime is 1910972407. The next prime is 1910972423. The reversal of 1910972420 is 242790191.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1910972423) 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, 6824762 + ... + 6825041.

It is an arithmetic number, because the mean of its divisors is an integer number (191097256).

Almost surely, 2^1910972420 is an apocalyptic number.

1910972420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1910972420 is an abundant number, since it is smaller than the sum of its proper divisors (2675361724).

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

1910972420 is a wasteful number, since it uses less digits than its factorization.

1910972420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13649819 (or 13649817 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1910972420 is about 43714.6705351876. The cubic root of 1910972420 is about 1240.9419698191.

The spelling of 1910972420 in words is "one billion, nine hundred ten million, nine hundred seventy-two thousand, four hundred twenty".