2027420757 has 6 divisors (see below), whose sum is σ = 2928496662. Its totient is φ = 1351613832.

The previous prime is 2027420753. The next prime is 2027420797. The reversal of 2027420757 is 7570247202.

It can be written as a sum of positive squares in only one way, i.e., 1639764036 + 387656721 = 40494^2 + 19689^2 .

It is not a de Polignac number, because 2027420757 - 2² = 2027420753 is a prime.

It is a super-2 number, since 2×2027420757² = 8220869851828906098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027420753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112634478 + ... + 112634495.

It is an arithmetic number, because the mean of its divisors is an integer number (488082777).

Almost surely, 2^2027420757 is an apocalyptic number.

It is an amenable number.

2027420757 is a deficient number, since it is larger than the sum of its proper divisors (901075905).

2027420757 is a wasteful number, since it uses less digits than its factorization.

2027420757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225268979 (or 225268976 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 2027420757 is about 45026.8892663040. The cubic root of 2027420757 is about 1265.6529318975.

Adding to 2027420757 its reverse (7570247202), we get a palindrome (9597667959).

The spelling of 2027420757 in words is "two billion, twenty-seven million, four hundred twenty thousand, seven hundred fifty-seven".