2769157940 has 24 divisors (see below), whose sum is σ = 5875186632. Its totient is φ = 1096243200.

The previous prime is 2769157921. The next prime is 2769157949. The reversal of 2769157940 is 497519672.

It can be written as a sum of positive squares in 4 ways, for example, as 313360804 + 2455797136 = 17702^2 + 49556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2769157949) 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, 711761 + ... + 715640.

It is an arithmetic number, because the mean of its divisors is an integer number (244799443).

Almost surely, 2^2769157940 is an apocalyptic number.

2769157940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2769157940 is an abundant number, since it is smaller than the sum of its proper divisors (3106028692).

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

2769157940 is a wasteful number, since it uses less digits than its factorization.

2769157940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427507 (or 1427505 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 2769157940 is about 52622.7891697124. The cubic root of 2769157940 is about 1404.2655516461.

The spelling of 2769157940 in words is "two billion, seven hundred sixty-nine million, one hundred fifty-seven thousand, nine hundred forty".