2920745940 has 72 divisors (see below), whose sum is σ = 9513296352. Its totient is φ = 667598400.

The previous prime is 2920745939. The next prime is 2920745983. The reversal of 2920745940 is 495470292.

2920745940 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2920745892 and 2920745901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493786 + ... + 499665.

It is an arithmetic number, because the mean of its divisors is an integer number (132129116).

Almost surely, 2^2920745940 is an apocalyptic number.

2920745940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2920745940 is an abundant number, since it is smaller than the sum of its proper divisors (6592550412).

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

2920745940 is a wasteful number, since it uses less digits than its factorization.

2920745940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993477 (or 993468 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2920745940 is about 54043.9260231897. The cubic root of 2920745940 is about 1429.4355997213.

The spelling of 2920745940 in words is "two billion, nine hundred twenty million, seven hundred forty-five thousand, nine hundred forty".