1920726726 has 16 divisors (see below), whose sum is σ = 3842178624. Its totient is φ = 640121384.

The previous prime is 1920726629. The next prime is 1920726727. The reversal of 1920726726 is 6276270291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920726727) 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, 7921 + ... + 62483.

It is an arithmetic number, because the mean of its divisors is an integer number (240136164).

Almost surely, 2^1920726726 is an apocalyptic number.

1920726726 is an abundant number, since it is smaller than the sum of its proper divisors (1921451898).

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

1920726726 is a wasteful number, since it uses less digits than its factorization.

1920726726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60435.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 1920726726 is about 43826.0964038551. The cubic root of 1920726726 is about 1243.0497955628.

The spelling of 1920726726 in words is "one billion, nine hundred twenty million, seven hundred twenty-six thousand, seven hundred twenty-six".