1492771920 has 80 divisors (see below), whose sum is σ = 4673486592. Its totient is φ = 394124800.

The previous prime is 1492771909. The next prime is 1492771927. The reversal of 1492771920 is 291772941.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492771927) 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, 6552 + ... + 55031.

Almost surely, 2^1492771920 is an apocalyptic number.

1492771920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1492771920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2336743296).

1492771920 is an abundant number, since it is smaller than the sum of its proper divisors (3180714672).

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

1492771920 is a wasteful number, since it uses less digits than its factorization.

1492771920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61700 (or 61694 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1492771920 is about 38636.4066652167. The cubic root of 1492771920 is about 1142.8725954458.

The spelling of 1492771920 in words is "one billion, four hundred ninety-two million, seven hundred seventy-one thousand, nine hundred twenty".